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-rw-r--r--platform/java/example/Viewer.java203
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diff --git a/platform/java/example/Viewer.java b/platform/java/example/Viewer.java
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+package example;
+
+import com.artifex.mupdf.fitz.*;
+
+import java.io.File;
+
+import java.awt.Frame;
+import java.awt.Label;
+import java.awt.Button;
+import java.awt.Panel;
+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.event.ActionListener;
+import java.awt.event.WindowListener;
+import java.awt.event.WindowEvent;
+import java.awt.event.ActionEvent;
+
+import javax.swing.JFileChooser;
+import javax.swing.filechooser.FileFilter;
+import javax.swing.JOptionPane;
+
+public class Viewer extends Frame implements WindowListener, ActionListener
+{
+ protected Document doc;
+ protected Panel toolbar;
+ protected PageCanvas pageCanvas;
+ protected Label pageLabel;
+ protected Button firstButton, prevButton, nextButton, lastButton;
+ protected int pageCount;
+ protected int pageNumber;
+
+ public Viewer(Document doc_) {
+ super("MuPDF");
+
+ this.doc = doc_;
+
+ pageCount = doc.countPages();
+ pageNumber = 0;
+
+ setSize(600, 900);
+ setTitle("MuPDF: " + doc.getMetaData(Document.META_INFO_TITLE));
+
+ toolbar = new Panel();
+ toolbar.setLayout(new FlowLayout(FlowLayout.LEFT));
+ firstButton = new Button("|<");
+ firstButton.addActionListener(this);
+ prevButton = new Button("<");
+ prevButton.addActionListener(this);
+ nextButton = new Button(">");
+ nextButton.addActionListener(this);
+ lastButton = new Button(">|");
+ lastButton.addActionListener(this);
+ pageLabel = new Label();
+
+ toolbar.add(firstButton);
+ toolbar.add(prevButton);
+ toolbar.add(nextButton);
+ toolbar.add(lastButton);
+ toolbar.add(pageLabel);
+
+ add(toolbar, BorderLayout.NORTH);
+
+ addWindowListener(this);
+
+ stuff();
+ }
+
+ public void stuff() {
+ pageLabel.setText("Page " + (pageNumber + 1) + " / " + pageCount);
+ if (pageCanvas != null)
+ remove(pageCanvas);
+ pageCanvas = new PageCanvas(doc.loadPage(pageNumber));
+ add(pageCanvas, BorderLayout.CENTER);
+ validate();
+ }
+
+ public void actionPerformed(ActionEvent event) {
+ Object source = event.getSource();
+ int oldPageNumber = pageNumber;
+
+ if (source == firstButton)
+ pageNumber = 0;
+ if (source == lastButton)
+ pageNumber = pageCount - 1;
+ if (source == prevButton) {
+ pageNumber = pageNumber - 1;
+ if (pageNumber < 0)
+ pageNumber = 0;
+ }
+ if (source == nextButton) {
+ pageNumber = pageNumber + 1;
+ if (pageNumber >= pageCount)
+ pageNumber = pageCount - 1;
+ }
+
+ if (pageNumber != oldPageNumber)
+ stuff();
+ }
+
+ public void windowClosing(WindowEvent event) {
+ System.exit(0);
+ }
+
+ public void windowActivated(WindowEvent event) { }
+ public void windowDeactivated(WindowEvent event) { }
+ public void windowIconified(WindowEvent event) { }
+ public void windowDeiconified(WindowEvent event) { }
+ public void windowOpened(WindowEvent event) { }
+ public void windowClosed(WindowEvent event) { }
+
+ public static void main(String[] args)
+ {
+ JFileChooser fileChooser = new JFileChooser();
+ fileChooser.setDialogTitle("Choose a file to open");
+ fileChooser.setFileFilter(new FileFilter()
+ {
+ public String getDescription()
+ {
+ return "Supported files (*.pdf, *,xps, *.jpg, *.jpeg, *.png, *.epub, *.cbz, *.cbr)";
+ }
+
+ public boolean accept(File f)
+ {
+ if (f.isDirectory())
+ return true;
+
+ String filename = f.getName().toLowerCase();
+ if (filename.endsWith(".pdf"))
+ return true;
+ if (filename.endsWith(".xps"))
+ return true;
+ if (filename.endsWith(".jpg"))
+ return true;
+ if (filename.endsWith(".jpeg"))
+ return true;
+ if (filename.endsWith(".png"))
+ return true;
+ if (filename.endsWith(".epub"))
+ return true;
+ if (filename.endsWith(".cbz"))
+ return true;
+ if (filename.endsWith(".cbr"))
+ return true;
+
+ return false;
+ }
+ });
+
+ while (true)
+ {
+ try
+ {
+ // get a file to open
+ int result = fileChooser.showOpenDialog(null);
+ if (result == JFileChooser.APPROVE_OPTION)
+ {
+ // user selects a file
+ File selectedFile = fileChooser.getSelectedFile();
+ if (selectedFile != null)
+ {
+ Document doc = new Document(selectedFile.getAbsolutePath());
+ if (doc != null)
+ {
+ Viewer app = new Viewer(doc);
+ if (app != null)
+ {
+ app.setVisible(true);
+ return;
+ }
+ else
+ {
+ infoBox("Cannot create Viewer for "+selectedFile.getAbsolutePath(),"Error");
+ }
+ }
+ else
+ {
+ infoBox("Cannot open "+selectedFile.getAbsolutePath(),"Error");
+ }
+ }
+ else
+ {
+ infoBox("Selected file not found.","Error");
+ }
+ }
+ else
+ {
+ infoBox("File selection cancelled.","Error");
+ return;
+ }
+
+ }
+ catch (Exception e)
+ {
+ infoBox("Exception: "+e.getMessage(),"Error");
+ }
+ }
+ }
+
+ private static void infoBox(String infoMessage, String titleBar)
+ {
+ JOptionPane.showMessageDialog(null, infoMessage, "InfoBox: " + titleBar, JOptionPane.INFORMATION_MESSAGE);
+ }
+}