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wrps-demo-kit/99-reference/ciserver-hmi-deployment/components/PDFView.java
Clio Liu 4fc5f80b21 chore: preserve reference files byte-for-byte 
.gitattributes normalised the CI Server exports under 99-reference/ to LF.
They are a format specification and must match what CI Server actually
wrote, so mark the folder -text and restore the originals.
2026-09-02 15:17:49 +10:00

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/*-
* @(#)PDFView.java
*
* Copyright: Yokogawa System Center Europe B.V. All rights reserved.
* YOKOGAWA PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
* Author: J. Burger
*
* ----------------------------------------------------------------------------
* Changes ....
* ----------------------------------------------------------------------------
* Who When Change What
* ----------------------------------------------------------------------------
* BGR Apr-09 e10100 Web-HMI Phase 2
*
*/
import com.sun.pdfview.*;
import com.sun.pdfview.action.GoToAction;
import com.sun.pdfview.action.PDFAction;
import fasttools.jwui.ilv.swing.IJComponentTagger;
import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.filechooser.FileFilter;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.geom.Rectangle2D;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.*;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Extends the PDFView to be usable in the {@link ExtendedJComponent} container.
*/
public class PDFView extends JInternalFrame
implements KeyListener, TreeSelectionListener,
PageChangeListener, IJComponentTagger {
public final static String TITLE = "PDF Viewer";
/**
* The current PDFFile
*/
PDFFile curFile;
/**
* the name of the current document
*/
String docName;
/**
* The split between thumbs and page
*/
JSplitPane split;
/**
* The thumbnail scroll pane
*/
JScrollPane thumbscroll;
/**
* The thumbnail display
*/
ThumbPanel thumbs;
/**
* The page display
*/
PagePanel page;
/**
* The full screen page display, or null if not in full screen mode
*/
PagePanel fspp;
// Thread anim;
/**
* The current page number (starts at 0), or -1 if no page
*/
int curpage = -1;
/**
* the full screen button
*/
JToggleButton fullScreenButton;
/**
* the current page number text field
*/
JTextField pageField;
/**
* the full screen window, or null if not in full screen mode
*/
FullScreenWindow fullScreen;
/**
* the root of the outline, or null if there is no outline
*/
OutlineNode outline = null;
/**
* The page format for printing
*/
PageFormat pformat = PrinterJob.getPrinterJob().defaultPage();
/**
* true if the thumb panel should exist at all
*/
boolean doThumb = true;
/**
* flag to indicate when a newly added document has been announced
*/
Flag docWaiter;
/**
* a thread that pre-loads the next page for faster response
*/
PagePreparer pagePrep;
/**
* the window containing the pdf outline, or null if one doesn't exist
*/
JDialog olf;
/**
* the document menu
*/
JMenu docMenu;
/*toolbar*/
JToolBar toolbar = null;
private String cSource = "";
private PagePanel panel = null;
private PDFViewer cPDFViewer = null;
boolean cShowNav = true;
int cNewPage = -1;
/* public PDFView() {
cPDFViewer = new PDFViewer(true);
this.add(cPDFViewer.getContentPane());
}*/
private class warnUserT extends Thread {
String cMessage;
public warnUserT(String message) {
cMessage = message;
}
public void run() {
JOptionPane.showMessageDialog(null, cMessage, "Error", JOptionPane.ERROR_MESSAGE);
}
}
private void warnUser(String message) {
(new warnUserT(message)).start();
}
public void refresh() {
Runnable runner = new Runnable() {
public void run() {
//load a pdf from a byte buffer
try {
File file = new File(cSource);
//remote file
//String urlStr = "file:/"+cSource;
//URL file = new URL(urlStr);
openFile(file);
} catch (Exception e) {
warnUser(e.toString());
}
}
};
SwingUtilities.invokeLater(runner);
}
public void setSource(String source) {
if (!cSource.equals(source)) {
cSource = source;
if (!source.equals("")) {
refresh();
} else {
doClose();
}
}
}
public String getSource() {
return cSource;
}
public void setThumbs(boolean thumbs) {
doThumb = thumbs;
doThumbs(doThumb);
}
public boolean isThumbs() {
return doThumb;
}
public void setNavigate(boolean nav) {
cShowNav = nav;
if (cShowNav) {
getContentPane().add(toolbar, BorderLayout.NORTH);
} else {
getContentPane().remove(toolbar);
}
this.pack();
}
public boolean isNavigate() {
return cShowNav;
}
public void setFirst(boolean b) {
boolean pageshown = ((fspp != null) ? fspp.getPage() != null : page.getPage() != null);
if (pageshown)
doFirst();
}
public boolean isFirst() {
return false;
}
public void setPrev(boolean b) {
boolean pageshown = ((fspp != null) ? fspp.getPage() != null : page.getPage() != null);
if (pageshown)
doPrev();
}
public boolean isPrev() {
return false;
}
public void setNext(boolean b) {
boolean pageshown = ((fspp != null) ? fspp.getPage() != null : page.getPage() != null);
if (pageshown)
doNext();
}
public boolean isNext() {
return false;
}
public void setLast(boolean b) {
boolean pageshown = ((fspp != null) ? fspp.getPage() != null : page.getPage() != null);
if (pageshown)
doLast();
}
public boolean isLast() {
return false;
}
public void setPagesetup(boolean b) {
boolean fileavailable = curFile != null;
boolean printable = fileavailable && curFile.isPrintable();
if (printable)
doPageSetup();
}
public boolean isPagesetup() {
return false;
}
public void setPrint(boolean b) {
boolean fileavailable = curFile != null;
boolean printable = fileavailable && curFile.isPrintable();
if (printable)
doPrint();
}
public boolean isPrint() {
return false;
}
public void setPage(double page) {
/*int newPage = (int)page-1;
if(curFile!=null)
{
gotoPage(newPage);
}*/
cNewPage = (int) page - 1;
Runnable runner = new Runnable() {
public void run() {
//load a pdf from a byte buffer
try {
if (curFile != null) {
gotoPage(cNewPage);
}
} catch (Exception e) {
warnUser(e.toString());
}
}
};
SwingUtilities.invokeLater(runner);
}
public double getPage() {
return (double) curpage + 1;
}
/*
* $Id: PDFViewer.java,v 1.8 2009/01/26 05:07:18 tomoke Exp $
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* utility method to get an icon from the resources of this class
*
* @param name the name of the icon
* @return the icon, or null if the icon wasn't found.
*/
public Icon getIcon(String name) {
Icon icon = null;
URL url = null;
try {
//url = getClass().getResource(name);
url = PDFViewer.class.getResource(name);
icon = new ImageIcon(url);
if (icon == null) {
System.out.println("Couldn't find " + url);
warnUser("Couldn't find " + url);
}
} catch (Exception e) {
System.out.println("Couldn't find " + PDFViewer.class.getName() + "/" + name);
e.printStackTrace();
warnUser("Couldn't find " + PDFViewer.class.getName() + "/" + name);
}
return icon;
}
/// FILE MENU
Action openAction = new AbstractAction("Open...") {
public void actionPerformed(ActionEvent evt) {
doOpen();
}
};
Action pageSetupAction = new AbstractAction("Page setup...") {
public void actionPerformed(ActionEvent evt) {
doPageSetup();
}
};
Action printAction = new AbstractAction("Print...", getIcon("gfx/print.gif")) {
public void actionPerformed(ActionEvent evt) {
doPrint();
}
};
Action closeAction = new AbstractAction("Close") {
public void actionPerformed(ActionEvent evt) {
doClose();
}
};
Action quitAction = new AbstractAction("Quit") {
public void actionPerformed(ActionEvent evt) {
doQuit();
}
};
class ZoomAction extends AbstractAction {
double zoomfactor = 1.0;
public ZoomAction(String name, double factor) {
super(name);
zoomfactor = factor;
}
public ZoomAction(String name, Icon icon, double factor) {
super(name, icon);
zoomfactor = factor;
}
public void actionPerformed(ActionEvent evt) {
doZoom(zoomfactor);
}
}
ZoomAction zoomInAction = new ZoomAction("Zoom in",
getIcon("gfx/zoomin.gif"),
2.0);
ZoomAction zoomOutAction = new ZoomAction("Zoom out",
getIcon("gfx/zoomout.gif"),
0.5);
Action zoomToolAction = new AbstractAction("", getIcon("gfx/zoom.gif")) {
public void actionPerformed(ActionEvent evt) {
doZoomTool();
}
};
Action fitInWindowAction = new AbstractAction("Fit in window",
getIcon("gfx/fit.gif")) {
public void actionPerformed(ActionEvent evt) {
doFitInWindow();
}
};
class ThumbAction extends AbstractAction
implements PropertyChangeListener {
boolean isOpen = true;
public ThumbAction() {
super("Hide thumbnails");
}
public void propertyChange(PropertyChangeEvent evt) {
int v = ((Integer) evt.getNewValue()).intValue();
if (v <= 1) {
isOpen = false;
putValue(ACTION_COMMAND_KEY, "Show thumbnails");
putValue(NAME, "Show thumbnails");
} else {
isOpen = true;
putValue(ACTION_COMMAND_KEY, "Hide thumbnails");
putValue(NAME, "Hide thumbnails");
}
}
public void actionPerformed(ActionEvent evt) {
doThumbs(!isOpen);
}
}
ThumbAction thumbAction = new ThumbAction();
Action fullScreenAction = new AbstractAction("Full screen",
getIcon("gfx/fullscrn.gif")) {
public void actionPerformed(ActionEvent evt) {
doFullScreen((evt.getModifiers() & evt.SHIFT_MASK) != 0);
}
};
Action nextAction = new AbstractAction("Next", getIcon("gfx/next.gif")) {
public void actionPerformed(ActionEvent evt) {
doNext();
}
};
Action firstAction = new AbstractAction("First", getIcon("gfx/first.gif")) {
public void actionPerformed(ActionEvent evt) {
doFirst();
}
};
Action lastAction = new AbstractAction("Last", getIcon("gfx/last.gif")) {
public void actionPerformed(ActionEvent evt) {
doLast();
}
};
Action prevAction = new AbstractAction("Prev", getIcon("gfx/prev.gif")) {
public void actionPerformed(ActionEvent evt) {
doPrev();
}
};
/**
* Create a new PDFViewer based on a user, with or without a thumbnail
* panel.
*
* @param useThumbs true if the thumb panel should exist, false if not.
*/
public PDFView() {
super(TITLE);
/*addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
doQuit();
}
});*/
((javax.swing.plaf.basic.BasicInternalFrameUI) this.getUI()).setNorthPane(null);
this.setBorder(null);
doThumb = true;
init();
}
/**
* Initialize this PDFViewer by creating the GUI.
*/
protected void init() {
page = new PagePanel();
page.addKeyListener(this);
if (doThumb) {
split = new JSplitPane(split.HORIZONTAL_SPLIT);
split.addPropertyChangeListener(split.DIVIDER_LOCATION_PROPERTY,
thumbAction);
split.setOneTouchExpandable(true);
thumbs = new ThumbPanel(null);
thumbscroll = new JScrollPane(thumbs,
thumbscroll.VERTICAL_SCROLLBAR_ALWAYS,
thumbscroll.HORIZONTAL_SCROLLBAR_NEVER);
split.setLeftComponent(thumbscroll);
split.setRightComponent(page);
getContentPane().add(split, BorderLayout.CENTER);
} else {
getContentPane().add(page, BorderLayout.CENTER);
}
toolbar = new JToolBar();
toolbar.setFloatable(false);
JButton jb;
jb = new JButton(firstAction);
jb.setText("");
toolbar.add(jb);
jb = new JButton(prevAction);
jb.setText("");
toolbar.add(jb);
pageField = new JTextField("-", 3);
// pageField.setConnected(false);
pageField.setMaximumSize(new Dimension(45, 32));
pageField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
doPageTyped();
}
});
toolbar.add(pageField);
jb = new JButton(nextAction);
jb.setText("");
toolbar.add(jb);
jb = new JButton(lastAction);
jb.setText("");
toolbar.add(jb);
toolbar.add(Box.createHorizontalGlue());
fullScreenButton = new JToggleButton(fullScreenAction);
fullScreenButton.setText("");
// toolbar.add(fullScreenButton);
fullScreenButton.setEnabled(true);
toolbar.add(Box.createHorizontalGlue());
JToggleButton jtb;
ButtonGroup bg = new ButtonGroup();
jtb = new JToggleButton(zoomToolAction);
jtb.setText("");
bg.add(jtb);
toolbar.add(jtb);
jtb = new JToggleButton(fitInWindowAction);
jtb.setText("");
bg.add(jtb);
jtb.setSelected(true);
toolbar.add(jtb);
toolbar.add(Box.createHorizontalGlue());
jb = new JButton(printAction);
jb.setText("");
toolbar.add(jb);
if (cShowNav) {
getContentPane().add(toolbar, BorderLayout.NORTH);
}
JMenuBar mb = new JMenuBar();
JMenu file = new JMenu("File");
file.add(openAction);
file.add(closeAction);
file.addSeparator();
file.add(pageSetupAction);
file.add(printAction);
file.addSeparator();
file.add(quitAction);
mb.add(file);
JMenu view = new JMenu("View");
JMenu zoom = new JMenu("Zoom");
zoom.add(zoomInAction);
zoom.add(zoomOutAction);
zoom.add(fitInWindowAction);
zoom.setEnabled(false);
view.add(zoom);
view.add(fullScreenAction);
if (doThumb) {
view.addSeparator();
view.add(thumbAction);
}
mb.add(view);
/*etJMenuBar(mb);
setEnabling();*/
pack();
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
int x = (screen.width - getWidth()) / 2;
int y = (screen.height - getHeight()) / 2;
setLocation(x, y);
if (SwingUtilities.isEventDispatchThread()) {
show();
} else {
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
show();
}
});
} catch (InvocationTargetException ie) {
// ignore
} catch (InterruptedException ie) {
// ignore
}
}
}
/**
* Changes the displayed page, desyncing if we're not on the
* same page as a presenter.
*
* @param pagenum the page to display
*/
public void gotoPage(int pagenum) {
if (pagenum < 0) {
pagenum = 0;
} else if (pagenum >= curFile.getNumPages()) {
pagenum = curFile.getNumPages() - 1;
}
forceGotoPage(pagenum);
}
/**
* Changes the displayed page.
*
* @param pagenum the page to display
*/
public void forceGotoPage(int pagenum) {
if (pagenum <= 0) {
pagenum = 0;
} else if (pagenum >= curFile.getNumPages()) {
pagenum = curFile.getNumPages() - 1;
}
// System.out.println("Going to page " + pagenum);
curpage = pagenum;
// update the page text field
pageField.setText(String.valueOf(curpage + 1));
// fetch the page and show it in the appropriate place
PDFPage pg = curFile.getPage(pagenum + 1);
if (fspp != null) {
fspp.showPage(pg);
fspp.requestFocus();
} else {
page.showPage(pg);
page.requestFocus();
}
// update the thumb panel
if (doThumb) {
thumbs.pageShown(pagenum);
}
// stop any previous page prepper, and start a new one
if (pagePrep != null) {
pagePrep.quit();
}
pagePrep = new PagePreparer(pagenum);
pagePrep.start();
setEnabling();
//component change
firePropertyChange("Page", -1, curpage);
cNewPage = curpage;
}
/**
* A class to pre-cache the next page for better UI response
*/
class PagePreparer extends Thread {
int waitforPage;
int prepPage;
/**
* Creates a new PagePreparer to prepare the page after the current
* one.
*
* @param waitforPage the current page number, 0 based
*/
public PagePreparer(int waitforPage) {
setDaemon(true);
setName(getClass().getName());
this.waitforPage = waitforPage;
this.prepPage = waitforPage + 1;
}
public void quit() {
waitforPage = -1;
}
public void run() {
Dimension size = null;
Rectangle2D clip = null;
// wait for the current page
// System.out.println("Preparer waiting for page " + (waitforPage + 1));
if (fspp != null) {
fspp.waitForCurrentPage();
size = fspp.getCurSize();
clip = fspp.getCurClip();
} else if (page != null) {
page.waitForCurrentPage();
size = page.getCurSize();
clip = page.getCurClip();
}
if (waitforPage == curpage) {
// don't go any further if the user changed pages.
// System.out.println("Preparer generating page " + (prepPage + 2));
PDFPage pdfPage = curFile.getPage(prepPage + 1, true);
if (pdfPage != null && waitforPage == curpage) {
// don't go any further if the user changed pages
// System.out.println("Generating image for page " + (prepPage + 2));
pdfPage.getImage(size.width, size.height, clip, null, true, true);
// System.out.println("Generated image for page "+ (prepPage+2));
}
}
}
}
/**
* Enable or disable all of the actions based on the current state.
*/
public void setEnabling() {
boolean fileavailable = curFile != null;
boolean pageshown = ((fspp != null) ? fspp.getPage() != null : page.getPage() != null);
boolean printable = fileavailable && curFile.isPrintable();
pageField.setEnabled(fileavailable);
printAction.setEnabled(printable);
closeAction.setEnabled(fileavailable);
fullScreenAction.setEnabled(pageshown);
prevAction.setEnabled(pageshown);
nextAction.setEnabled(pageshown);
firstAction.setEnabled(fileavailable);
lastAction.setEnabled(fileavailable);
zoomToolAction.setEnabled(pageshown);
fitInWindowAction.setEnabled(pageshown);
zoomInAction.setEnabled(pageshown);
zoomOutAction.setEnabled(pageshown);
}
/**
* open a URL to a PDF file. The file is read in and processed
* with an in-memory buffer.
*
* @param url
* @throws java.io.IOException
*/
public void openFile(URL url) throws IOException {
URLConnection urlConnection = url.openConnection();
int contentLength = urlConnection.getContentLength();
InputStream istr = urlConnection.getInputStream();
byte[] byteBuf = new byte[contentLength];
int offset = 0;
int read = 0;
while (read >= 0) {
read = istr.read(byteBuf, offset, contentLength - offset);
if (read > 0) {
offset += read;
}
}
if (offset != contentLength) {
throw new IOException("Could not read all of URL file.");
}
ByteBuffer buf = ByteBuffer.allocate(contentLength);
buf.put(byteBuf);
openPDFByteBuffer(buf, url.toString(), url.getFile());
}
/**
* <p>Open a specific pdf file. Creates a DocumentInfo from the file,
* and opens that.</p>
* <p/>
* <p><b>Note:</b> Mapping the file locks the file until the PDFFile
* is closed.</p>
*
* @param file the file to open
* @throws IOException
*/
public void openFile(File file) throws IOException {
// first open the file for random access
RandomAccessFile raf = new RandomAccessFile(file, "r");
// extract a file channel
FileChannel channel = raf.getChannel();
// now memory-map a byte-buffer
ByteBuffer buf =
channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
openPDFByteBuffer(buf, file.getPath(), file.getName());
}
/**
* <p>Open a specific pdf file. Creates a DocumentInfo from the file,
* and opens that.</p>
* <p/>
* <p><b>Note:</b> By not memory mapping the file its contents are
* not locked down while PDFFile is open.</p>
*
* @param file the file to open
*/
public void openFileUnMapped(File file) throws IOException {
DataInputStream istr = null;
try {
//load a pdf from a byte buffer
// avoid using a RandomAccessFile but fill a ByteBuffer directly
istr = new DataInputStream(new FileInputStream(file));
long len = file.length();
if (len > Integer.MAX_VALUE) {
throw new IOException("File too long to decode: " + file.getName());
}
int contentLength = (int) len;
byte[] byteBuf = new byte[contentLength];
int offset = 0;
int read = 0;
while (read >= 0) {
read = istr.read(byteBuf, offset, contentLength - offset);
if (read > 0) {
offset += read;
}
}
ByteBuffer buf = ByteBuffer.allocate(contentLength);
buf.put(byteBuf);
openPDFByteBuffer(buf, file.getPath(), file.getName());
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
if (istr != null) {
try {
istr.close();
} catch (Exception e) {
// ignore error on close
}
}
}
}
/**
* open the ByteBuffer data as a PDFFile and start to process it.
*
* @param buf
* @param path
*/
private void openPDFByteBuffer(ByteBuffer buf, String path, String name) {
// create a PDFFile from the data
PDFFile newfile = null;
try {
newfile = new PDFFile(buf);
} catch (IOException ioe) {
openError(path + " doesn't appear to be a PDF file.");
return;
}
// Now that we're reasonably sure this document is real, close the
// old one.
doClose();
// set up our document
this.curFile = newfile;
docName = name;
setTitle(TITLE + ": " + docName);
// set up the thumbnails
if (doThumb) {
thumbs = new ThumbPanel(curFile);
thumbs.addPageChangeListener(this);
thumbscroll.getViewport().setView(thumbs);
thumbscroll.getViewport().setBackground(Color.gray);
}
setEnabling();
// display page 1.
forceGotoPage(cNewPage);
//forceGotoPage(0);
// if the PDF has an outline, display it.
try {
outline = curFile.getOutline();
} catch (IOException ioe) {
}
if (false && outline != null) {
if (outline.getChildCount() > 0) {
olf = new JDialog();
olf.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
olf.setLocation(this.getLocation());
JTree jt = new JTree(outline);
jt.setRootVisible(false);
jt.addTreeSelectionListener(this);
JScrollPane jsp = new JScrollPane(jt);
olf.getContentPane().add(jsp);
olf.pack();
olf.setVisible(true);
} else {
if (olf != null) {
olf.setVisible(false);
olf = null;
}
}
}
}
/**
* Display a dialog indicating an error.
*/
public void openError(String message) {
JOptionPane.showMessageDialog(split, message, "Error opening file",
JOptionPane.ERROR_MESSAGE);
}
/**
* A file filter for PDF files.
*/
FileFilter pdfFilter = new FileFilter() {
public boolean accept(File f) {
return f.isDirectory() || f.getName().endsWith(".pdf");
}
public String getDescription() {
return "Choose a PDF file";
}
};
private File prevDirChoice;
/**
* Ask the user for a PDF file to open from the local file system
*/
public void doOpen() {
try {
JFileChooser fc = new JFileChooser();
fc.setCurrentDirectory(prevDirChoice);
fc.setFileFilter(pdfFilter);
fc.setMultiSelectionEnabled(false);
int returnVal = fc.showOpenDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
try {
prevDirChoice = fc.getSelectedFile();
openFile(fc.getSelectedFile());
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
} catch (Exception e) {
JOptionPane.showMessageDialog(split,
"Opening files from your local " +
"disk is not available\nfrom the " +
"Java Web Start version of this " +
"program.\n",
"Error opening directory",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}
/**
* Open a local file, given a string filename
*
* @param name the name of the file to open
*/
public void doOpen(String name) {
try {
URL url = new URL(name);
openFile(new URL(name));
} catch (IOException ioe) {
try {
openFile(new File(name));
} catch (IOException ex) {
Logger.getLogger(PDFViewer.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
/**
* Posts the Page Setup dialog
*/
public void doPageSetup() {
PrinterJob pjob = PrinterJob.getPrinterJob();
pformat = pjob.pageDialog(pformat);
}
/**
* A thread for printing in.
*/
class PrintThread extends Thread {
PDFPrintPage ptPages;
PrinterJob ptPjob;
public PrintThread(PDFPrintPage pages, PrinterJob pjob) {
ptPages = pages;
ptPjob = pjob;
setName(getClass().getName());
}
public void run() {
try {
ptPages.show(ptPjob);
ptPjob.print();
} catch (PrinterException pe) {
JOptionPane.showMessageDialog(PDFView.this,
"Printing Error: " + pe.getMessage(),
"Print Aborted",
JOptionPane.ERROR_MESSAGE);
}
ptPages.hide();
}
}
/**
* Print the current document.
*/
public void doPrint() {
PrinterJob pjob = PrinterJob.getPrinterJob();
pjob.setJobName(docName);
Book book = new Book();
PDFPrintPage pages = new PDFPrintPage(curFile);
book.append(pages, pformat, curFile.getNumPages());
pjob.setPageable(book);
if (pjob.printDialog()) {
new PrintThread(pages, pjob).start();
}
}
/**
* Close the current document.
*/
public void doClose() {
if (thumbs != null) {
thumbs.stop();
}
if (olf != null) {
olf.setVisible(false);
olf = null;
}
if (doThumb) {
thumbs = new ThumbPanel(null);
thumbscroll.getViewport().setView(thumbs);
}
setFullScreenMode(false, false);
page.showPage(null);
curFile = null;
setTitle(TITLE);
setEnabling();
}
/**
* Shuts down all known threads. This ought to cause the JVM to quit
* if the PDFViewer is the only application running.
*/
public void doQuit() {
// if (thumbs != null) {
// thumbs.stop();
// }
doClose();
dispose();
System.exit(0);
}
/**
* Turns on zooming
*/
public void doZoomTool() {
if (fspp == null) {
page.useZoomTool(true);
}
}
/**
* Turns off zooming; makes the page fit in the window
*/
public void doFitInWindow() {
if (fspp == null) {
page.useZoomTool(false);
page.setClip(null);
}
}
/**
* Shows or hides the thumbnails by moving the split pane divider
*/
public void doThumbs(boolean show) {
if (show) {
split.setDividerLocation((int) thumbs.getPreferredSize().width +
(int) thumbscroll.getVerticalScrollBar().
getWidth() + 4);
} else {
split.setDividerLocation(0);
}
}
/**
* Enter full screen mode
*
* @param force true if the user should be prompted for a screen to
* use in a multiple-monitor setup. If false, the user will only be
* prompted once.
*/
public void doFullScreen(boolean force) {
setFullScreenMode(fullScreen == null, force);
}
public void doZoom(double factor) {
}
// public void doOpenMeetingDoc(DocumentInfo doc) {
// }
/**
* Goes to the next page
*/
public void doNext() {
gotoPage(curpage + 1);
}
/**
* Goes to the previous page
*/
public void doPrev() {
gotoPage(curpage - 1);
}
/**
* Goes to the first page
*/
public void doFirst() {
gotoPage(0);
}
/**
* Goes to the last page
*/
public void doLast() {
gotoPage(curFile.getNumPages() - 1);
}
/**
* Goes to the page that was typed in the page number text field
*/
public void doPageTyped() {
int pagenum = -1;
try {
pagenum = Integer.parseInt(pageField.getText()) - 1;
} catch (NumberFormatException nfe) {
}
if (pagenum >= curFile.getNumPages()) {
pagenum = curFile.getNumPages() - 1;
}
if (pagenum >= 0) {
if (pagenum != curpage) {
gotoPage(pagenum);
}
} else {
pageField.setText(String.valueOf(curpage));
}
}
/**
* Runs the FullScreenMode change in another thread
*/
class PerformFullScreenMode implements Runnable {
boolean force;
public PerformFullScreenMode(boolean forcechoice) {
force = forcechoice;
}
public void run() {
fspp = new PagePanel();
fspp.setBackground(Color.black);
page.showPage(null);
fullScreen = new FullScreenWindow(fspp, force);
fspp.addKeyListener(PDFView.this);
gotoPage(curpage);
fullScreenAction.setEnabled(true);
}
}
/**
* Starts or ends full screen mode.
*
* @param full true to enter full screen mode, false to leave
* @param force true if the user should be prompted for a screen
* to use the second time full screen mode is entered.
*/
public void setFullScreenMode(boolean full, boolean force) {
// curpage= -1;
if (full && fullScreen == null) {
fullScreenAction.setEnabled(false);
new Thread(new PerformFullScreenMode(force),
getClass().getName() + ".setFullScreenMode").start();
fullScreenButton.setSelected(true);
} else if (!full && fullScreen != null) {
fullScreen.close();
fspp = null;
fullScreen = null;
gotoPage(curpage);
fullScreenButton.setSelected(false);
}
}
public static void main(String args[]) {
String fileName = null;
boolean useThumbs = true;
for (int i = 0; i < args.length; i++) {
if (args[i].equalsIgnoreCase("-noThumb")) {
useThumbs = false;
} else if (args[i].equalsIgnoreCase("-help") ||
args[i].equalsIgnoreCase("-h") ||
args[i].equalsIgnoreCase("-?")) {
System.out.println("java com.sun.awc.PDFViewer [flags] [file]");
System.out.println("flags: [-noThumb] [-help or -h or -?]");
System.exit(0);
} else {
fileName = args[i];
}
}
// start the viewer
PDFViewer viewer;
viewer = new PDFViewer(useThumbs);
if (fileName != null) {
viewer.doOpen(fileName);
}
}
/**
* Handle a key press for navigation
*/
public void keyPressed(KeyEvent evt) {
int code = evt.getKeyCode();
if (code == evt.VK_LEFT) {
doPrev();
} else if (code == evt.VK_RIGHT) {
doNext();
} else if (code == evt.VK_UP) {
doPrev();
} else if (code == evt.VK_DOWN) {
doNext();
} else if (code == evt.VK_HOME) {
doFirst();
} else if (code == evt.VK_END) {
doLast();
} else if (code == evt.VK_PAGE_UP) {
doPrev();
} else if (code == evt.VK_PAGE_DOWN) {
doNext();
} else if (code == evt.VK_SPACE) {
doNext();
} else if (code == evt.VK_ESCAPE) {
setFullScreenMode(false, false);
}
}
/**
* Combines numeric key presses to build a multi-digit page number.
*/
class PageBuilder implements Runnable {
int value = 0;
long timeout;
Thread anim;
static final long TIMEOUT = 500;
/**
* add the digit to the page number and start the timeout thread
*/
public synchronized void keyTyped(int keyval) {
value = value * 10 + keyval;
timeout = System.currentTimeMillis() + TIMEOUT;
if (anim == null) {
anim = new Thread(this);
anim.setName(getClass().getName());
anim.start();
}
}
/**
* waits for the timeout, and if time expires, go to the specified
* page number
*/
public void run() {
long now, then;
synchronized (this) {
now = System.currentTimeMillis();
then = timeout;
}
while (now < then) {
try {
Thread.sleep(timeout - now);
} catch (InterruptedException ie) {
}
synchronized (this) {
now = System.currentTimeMillis();
then = timeout;
}
}
synchronized (this) {
gotoPage(value - 1);
anim = null;
value = 0;
}
}
}
PageBuilder pb = new PageBuilder();
public void keyReleased(KeyEvent evt) {
}
/**
* gets key presses and tries to build a page if they're numeric
*/
public void keyTyped(KeyEvent evt) {
char key = evt.getKeyChar();
if (key >= '0' && key <= '9') {
int val = key - '0';
pb.keyTyped(val);
}
}
/**
* Someone changed the selection of the outline tree. Go to the new
* page.
*/
public void valueChanged(TreeSelectionEvent e) {
if (e.isAddedPath()) {
OutlineNode node = (OutlineNode) e.getPath().getLastPathComponent();
if (node == null) {
return;
}
try {
PDFAction action = node.getAction();
if (action == null) {
return;
}
if (action instanceof GoToAction) {
PDFDestination dest = ((GoToAction) action).getDestination();
if (dest == null) {
return;
}
PDFObject page = dest.getPage();
if (page == null) {
return;
}
int pageNum = curFile.getPageNumber(page);
if (pageNum >= 0) {
gotoPage(pageNum);
}
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
}
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