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- /*
- * $Id$
- * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
- * For details on use and redistribution please refer to the
- * LICENSE file included with these sources.
- */
-
- package org.apache.fop.viewer;
-
- /*
- * originally contributed by
- * Juergen Verwohlt: Juergen.Verwohlt@jCatalog.com,
- * Rainer Steinkuhle: Rainer.Steinkuhle@jCatalog.com,
- * Stanislav Gorkhover: Stanislav.Gorkhover@jCatalog.com
- * Doro Wiarda (wiarda@dwiarda.com:
- * added MessageListener support and made
- * the showing of the progress and error
- * messages Swing thread safe.
- * This is needed as xml parse errors do not
- * necessarily occur in the
- * EventDispatchThread.
- */
-
- import java.awt.*;
- import java.awt.print.*;
- import java.awt.event.*;
- import java.awt.image.BufferedImage;
- import java.util.StringTokenizer;
- import java.util.Vector;
-
- import javax.swing.*;
-
- import org.apache.fop.layout.*;
- import org.apache.fop.render.awt.*;
- import org.apache.fop.messaging.*;
-
- /**
- * Frame and User Interface for Preview
- */
- public class PreviewDialog extends JFrame implements ProgressListener,
- MessageListener {
-
- protected Translator res;
-
- protected int currentPage = 0;
- protected int pageCount = 0;
-
- protected AWTRenderer renderer;
-
- protected IconToolBar toolBar = new IconToolBar();
-
- protected Command printAction;
- protected Command firstPageAction;
- protected Command previousPageAction;
- protected Command nextPageAction;
- protected Command lastPageAction;
-
- protected JLabel zoomLabel =
- new JLabel(); // {public float getAlignmentY() { return 0.0f; }};
- protected JComboBox scale = new JComboBox() {
- public float getAlignmentY() {
- return 0.5f;
- }
-
- };
-
- protected JScrollPane previewArea = new JScrollPane();
- // protected JLabel statusBar = new JLabel();
- protected JPanel statusBar = new JPanel();
- protected GridBagLayout statusBarLayout = new GridBagLayout();
-
- protected JLabel statisticsStatus = new JLabel();
- protected JLabel processStatus = new JLabel();
- protected JLabel infoStatus = new JLabel();
- protected JLabel previewImageLabel = new JLabel();
-
- /**
- * Create a new PreviewDialog that uses the given renderer and translator.
- *
- * @param aRenderer the to use renderer
- * @param aRes the to use translator
- */
- public PreviewDialog(AWTRenderer aRenderer, Translator aRes) {
- res = aRes;
- renderer = aRenderer;
-
- printAction = new Command(res.getString("Print"), "Print") {
- public void doit() {
- print();
- }
-
- };
- firstPageAction = new Command(res.getString("First page"),
- "firstpg") {
- public void doit() {
- goToFirstPage(null);
- }
-
- };
- previousPageAction = new Command(res.getString("Previous page"),
- "prevpg") {
- public void doit() {
- goToPreviousPage(null);
- }
-
- };
- nextPageAction = new Command(res.getString("Next page"), "nextpg") {
- public void doit() {
- goToNextPage(null);
- }
-
- };
- lastPageAction = new Command(res.getString("Last page"), "lastpg") {
- public void doit() {
- goToLastPage(null);
- }
-
- };
-
- setDefaultCloseOperation(DISPOSE_ON_CLOSE);
- this.setSize(new Dimension(379, 476));
- previewArea.setMinimumSize(new Dimension(50, 50));
-
- this.setTitle("FOP: AWT-" + res.getString("Preview"));
-
- scale.addItem("25");
- scale.addItem("50");
- scale.addItem("75");
- scale.addItem("100");
- scale.addItem("150");
- scale.addItem("200");
-
- scale.setMaximumSize(new Dimension(80, 24));
- scale.setPreferredSize(new Dimension(80, 24));
-
- scale.addActionListener(new java.awt.event.ActionListener() {
- public void actionPerformed(ActionEvent e) {
- scale_actionPerformed(e);
- }
-
- });
-
- scale.setSelectedItem("100");
- renderer.setScaleFactor(100.0);
-
- zoomLabel.setText(res.getString("Zoom"));
-
- this.setJMenuBar(setupMenue());
-
- this.getContentPane().add(toolBar, BorderLayout.NORTH);
-
- toolBar.add(printAction);
- toolBar.addSeparator();
- toolBar.add(firstPageAction);
- toolBar.add(previousPageAction);
- toolBar.add(nextPageAction);
- toolBar.add(lastPageAction);
- toolBar.addSeparator();
- toolBar.add(zoomLabel, null);
- toolBar.addSeparator();
- toolBar.add(scale, null);
-
- this.getContentPane().add(previewArea, BorderLayout.CENTER);
- this.getContentPane().add(statusBar, BorderLayout.SOUTH);
-
- statisticsStatus.setBorder(BorderFactory.createEtchedBorder());
- processStatus.setBorder(BorderFactory.createEtchedBorder());
- infoStatus.setBorder(BorderFactory.createEtchedBorder());
-
- statusBar.setLayout(statusBarLayout);
-
- processStatus.setPreferredSize(new Dimension(200, 21));
- statisticsStatus.setPreferredSize(new Dimension(100, 21));
- infoStatus.setPreferredSize(new Dimension(100, 21));
- processStatus.setMinimumSize(new Dimension(200, 21));
- statisticsStatus.setMinimumSize(new Dimension(100, 21));
- infoStatus.setMinimumSize(new Dimension(100, 21));
- statusBar.add(processStatus,
- new GridBagConstraints(0, 0, 2, 1, 2.0, 0.0,
- GridBagConstraints.CENTER,
- GridBagConstraints.HORIZONTAL,
- new Insets(0, 0, 0, 5), 0, 0));
- statusBar.add(statisticsStatus,
- new GridBagConstraints(2, 0, 1, 2, 1.0, 0.0,
- GridBagConstraints.CENTER,
- GridBagConstraints.HORIZONTAL,
- new Insets(0, 0, 0, 5), 0, 0));
- statusBar.add(infoStatus,
- new GridBagConstraints(3, 0, 1, 1, 1.0, 0.0,
- GridBagConstraints.CENTER,
- GridBagConstraints.HORIZONTAL,
- new Insets(0, 0, 0, 0), 0, 0));
-
- previewArea.getViewport().add(previewImageLabel);
- showPage();
- }
-
- /**
- * Create a new menubar to be shown in this window.
- *
- * @return the newly created menubar
- */
- private JMenuBar setupMenue() {
- JMenuBar menuBar;
- JMenuItem menuItem;
- JMenu menu;
- JMenu subMenu;
-
- menuBar = new JMenuBar();
- menu = new JMenu(res.getString("File"));
- subMenu = new JMenu("OutputFormat");
- subMenu.add(new Command("mHTML"));
- subMenu.add(new Command("mPDF"));
- subMenu.add(new Command("mRTF"));
- subMenu.add(new Command("mTEXT"));
- // menu.add(subMenu);
- // menu.addSeparator();
- menu.add(new Command(res.getString("Print")) {
- public void doit() {
- print();
- }
-
- });
- menu.addSeparator();
- menu.add(new Command(res.getString("Exit")) {
- public void doit() {
- dispose();
- }
-
- });
- menuBar.add(menu);
- menu = new JMenu(res.getString("View"));
- menu.add(new Command(res.getString("First page")) {
- public void doit() {
- goToFirstPage(null);
- }
-
- });
- menu.add(new Command(res.getString("Previous page")) {
- public void doit() {
- goToPreviousPage(null);
- }
-
- });
- menu.add(new Command(res.getString("Next page")) {
- public void doit() {
- goToNextPage(null);
- }
-
- });
- menu.add(new Command(res.getString("Last page")) {
- public void doit() {
- goToLastPage(null);
- }
-
- });
- menu.add(new Command(res.getString("Go to Page") + " ...") {
- public void doit() {
- goToPage(null);
- }
-
- });
- menu.addSeparator();
- subMenu = new JMenu(res.getString("Zoom"));
- subMenu.add(new Command("25%") {
- public void doit() {
- setScale(25.0);
- }
-
- });
- subMenu.add(new Command("50%") {
- public void doit() {
- setScale(50.0);
- }
-
- });
- subMenu.add(new Command("75%") {
- public void doit() {
- setScale(75.0);
- }
-
- });
- subMenu.add(new Command("100%") {
- public void doit() {
- setScale(100.0);
- }
-
- });
- subMenu.add(new Command("150%") {
- public void doit() {
- setScale(150.0);
- }
-
- });
- subMenu.add(new Command("200%") {
- public void doit() {
- setScale(200.0);
- }
-
- });
- menu.add(subMenu);
- menu.addSeparator();
- menu.add(new Command(res.getString("Default zoom")) {
- public void doit() {
- setScale(100.0);
- }
-
- });
- menuBar.add(menu);
- menu = new JMenu(res.getString("Help"));
- menu.add(new Command(res.getString("Index")));
- menu.addSeparator();
- menu.add(new Command(res.getString("Introduction")));
- menu.addSeparator();
- menu.add(new Command(res.getString("About")) {
- public void doit() {
- startHelpAbout(null);
- }
-
- });
- menuBar.add(menu);
- return menuBar;
- }
-
- // Aktion Hilfe | Info durchgeführt
-
- /**
- * Show the About box
- *
- * @param e a value of type 'ActionEvent'
- */
- public void startHelpAbout(ActionEvent e) {
- PreviewDialogAboutBox dlg = new PreviewDialogAboutBox(this);
- Dimension dlgSize = dlg.getPreferredSize();
- Dimension frmSize = getSize();
- Point loc = getLocation();
- dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
- (frmSize.height - dlgSize.height) / 2 + loc.y);
- dlg.setModal(true);
- dlg.show();
- }
-
- /**
- * Change the current visible page
- *
- * @param number the page number to go to
- */
- private void goToPage(int number) {
- currentPage = number;
- renderer.setPageNumber(number);
- showPage();
- }
-
- /**
- * Shows the previous page.
- */
- private void goToPreviousPage(ActionEvent e) {
- if (currentPage <= 0)
- return;
- currentPage--;
- goToPage(currentPage);
- }
-
-
- /**
- * Shows the next page.
- */
- private void goToNextPage(ActionEvent e) {
- if (currentPage >= pageCount - 1)
- return;
- currentPage++;
- goToPage(currentPage);
- }
-
- /**
- * Shows the last page.
- */
- private void goToLastPage(ActionEvent e) {
-
- if (currentPage == pageCount - 1)
- return;
- currentPage = pageCount - 1;
-
- goToPage(currentPage);
- }
-
- /**
- * Shows a page by number.
- */
- private void goToPage(ActionEvent e) {
-
- GoToPageDialog d = new GoToPageDialog(this,
- res.getString("Go to Page"),
- true);
- d.setLocation((int)getLocation().getX() + 50,
- (int)getLocation().getY() + 50);
- d.show();
- currentPage = d.getPageNumber();
-
- if (currentPage < 1 || currentPage > pageCount)
- return;
-
- currentPage--;
-
- goToPage(currentPage);
- }
-
- /**
- * Shows the first page.
- */
- private void goToFirstPage(ActionEvent e) {
- if (currentPage == 0)
- return;
- currentPage = 0;
- goToPage(currentPage);
- }
-
- private void print() {
- PrinterJob pj = PrinterJob.getPrinterJob();
- // Nicht nötig, Pageable get a Printable.
- // pj.setPrintable(renderer);
- pj.setPageable(renderer);
-
- if (pj.printDialog()) {
- try {
- pj.print();
- } catch (PrinterException pe) {
- pe.printStackTrace();
- }
- }
- }
-
- public void setScale(double scaleFactor) {
-
- if (scaleFactor == 25.0)
- scale.setSelectedIndex(0);
- else if (scaleFactor == 50.0)
- scale.setSelectedIndex(1);
- else if (scaleFactor == 75.0)
- scale.setSelectedIndex(2);
- else if (scaleFactor == 100.0)
- scale.setSelectedIndex(3);
- else if (scaleFactor == 150.0)
- scale.setSelectedIndex(4);
- else if (scaleFactor == 200.0)
- scale.setSelectedIndex(5);
-
- renderer.setScaleFactor(scaleFactor);
- showPage();
- }
-
- void scale_actionPerformed(ActionEvent e) {
- setScale(new Double((String)scale.getSelectedItem()).doubleValue());
- }
-
- public void progress(int percentage) {
- progress(new String(percentage + "%"));
- }
-
- public void progress(int percentage, String message) {
- progress(new String(message + " " + percentage + "%"));
- }
-
-
- /**
- * Setting the text of a JLabel is not thread save, it
- * needs to be done in the EventThread. Here we make sure
- * it is done.
- */
- public void progress(String message) {
- SwingUtilities.invokeLater(new showProgress(message, false));
- }
-
-
- /**
- * This class is used to show status and error messages in
- * a thread safe way.
- */
- class showProgress implements Runnable {
-
- /**
- * The message to display
- */
- Object message;
-
- /**
- * Is this an errorMessage, i.e. should it be shown in
- * an JOptionPane or in the status bar.
- */
- boolean isErrorMessage = false;
-
- /**
- * Constructs showProgress thread
- * @param message message to display
- * @param isErrorMessage show in status bar or in JOptionPane
- */
- public showProgress(Object message, boolean isErrorMessage) {
- this.message = message;
- this.isErrorMessage = isErrorMessage;
- }
-
- public void run() {
- if (isErrorMessage) {
- JOptionPane.showMessageDialog(null, message, "Error",
- JOptionPane.ERROR_MESSAGE);
- } else
- processStatus.setText(message.toString());
- }
-
- }
-
- public void showPage() {
- showPageImage viewer = new showPageImage();
-
- if (SwingUtilities.isEventDispatchThread()) {
- viewer.run();
- } else
- SwingUtilities.invokeLater(viewer);
- }
-
-
- /**
- * This class is used to update the page image
- * in a thread safe way.
- */
- class showPageImage implements Runnable {
-
- /**
- * The run method that does the actuall updating
- */
- public void run() {
- BufferedImage pageImage = null;
- Graphics graphics = null;
-
- //renderer.render(currentPage);
- pageImage = renderer.getLastRenderedPage();
- if (pageImage == null)
- return;
- graphics = pageImage.getGraphics();
- graphics.setColor(Color.black);
- graphics.drawRect(0, 0, pageImage.getWidth() - 1,
- pageImage.getHeight() - 1);
-
- previewImageLabel.setIcon(new ImageIcon(pageImage));
-
- pageCount = renderer.getPageCount();
-
- statisticsStatus.setText(res.getString("Page") + " "
- + (currentPage + 1) + " "
- + res.getString("of") + " " + pageCount);
- }
-
- }
-
-
- /**
- * Called by MessageHandler if an error message or a
- * log message is received.
- */
- public void processMessage(MessageEvent event) {
- String error = event.getMessage();
- String text = processStatus.getText();
- FontMetrics fmt =
- processStatus.getFontMetrics(processStatus.getFont());
- int width = processStatus.getWidth() - fmt.stringWidth("...");
- showProgress showIt;
-
- if (event.getMessageType() == event.LOG) {
- if (!text.endsWith("\n")) {
- text = text + error;
- while (fmt.stringWidth(text) > width) {
- text = text.substring(1);
- width = processStatus.getWidth() - fmt.stringWidth("...");
- }
- } else
- text = error;
- progress(text);
- } else {
- error = error.trim();
- if (error.equals(">")) {
- text = text + error;
- while (fmt.stringWidth(text) > width) {
- text = text.substring(1);
- width = processStatus.getWidth() - fmt.stringWidth("...");
- }
- progress(processStatus.getText() + error);
- return;
- }
- if (error.equals(""))
- return;
- if (error.length() < 60) {
- showIt = new showProgress(error, true);
- } else {
- StringTokenizer tok = new StringTokenizer(error, " ");
- Vector labels = new Vector();
- StringBuffer buffer = new StringBuffer();
- String tmp, list[];
-
- while (tok.hasMoreTokens()) {
- tmp = tok.nextToken();
- if ((buffer.length() + tmp.length() + 1) < 60) {
- buffer.append(" ").append(tmp);
- } else {
- labels.add(buffer.toString());
- buffer = new StringBuffer();
- buffer.append(tmp);
- }
- }
- labels.add(buffer.toString());
- list = new String[labels.size()];
- for (int i = 0; i < labels.size(); i++) {
- list[i] = labels.elementAt(i).toString();
- }
- showIt = new showProgress(list, true);
- }
- if (SwingUtilities.isEventDispatchThread()) {
- showIt.run();
- } else {
- try {
- SwingUtilities.invokeAndWait(showIt);
- } catch (Exception e) {
- e.printStackTrace();
- progress(event.getMessage());
- }
- }
- }
- }
-
-
- public void dispose() {
- System.exit(0);
- }
-
- } // class PreviewDialog
-
-
-
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