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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- // Originally contributed by:
- // Juergen Verwohlt: Juergen.Verwohlt@jCatalog.com,
- // Rainer Steinkuhle: Rainer.Steinkuhle@jCatalog.com,
- // Stanislav Gorkhover: Stanislav.Gorkhover@jCatalog.com
- package org.apache.fop.render.awt.viewer;
-
- // Java
- import java.awt.BorderLayout;
- import java.awt.Dimension;
- import java.awt.GridBagConstraints;
- import java.awt.GridBagLayout;
- import java.awt.Insets;
- import java.awt.Point;
- import java.awt.Toolkit;
- import java.awt.event.ActionEvent;
- import java.awt.event.ActionListener;
- import java.awt.event.KeyEvent;
- import java.awt.event.WindowAdapter;
- import java.awt.event.WindowEvent;
- import java.awt.print.PrinterException;
- import java.awt.print.PrinterJob;
- import java.text.DecimalFormat;
- import java.text.DecimalFormatSymbols;
- import java.util.Locale;
-
- import javax.swing.ActionMap;
- import javax.swing.BorderFactory;
- import javax.swing.ButtonGroup;
- import javax.swing.InputMap;
- import javax.swing.JComboBox;
- import javax.swing.JComponent;
- import javax.swing.JFrame;
- import javax.swing.JLabel;
- import javax.swing.JMenu;
- import javax.swing.JMenuBar;
- import javax.swing.JOptionPane;
- import javax.swing.JPanel;
- import javax.swing.JRadioButtonMenuItem;
- import javax.swing.JToolBar;
- import javax.swing.KeyStroke;
- import javax.swing.SwingUtilities;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.render.awt.AWTRenderer;
-
- /**
- * AWT Viewer main window.
- * Surrounds a PreviewPanel with a bunch of pretty buttons and controls.
- */
- public class PreviewDialog extends JFrame implements StatusListener {
-
- /** The Translator for localization */
- protected Translator translator;
- /** The AWT renderer */
- protected AWTRenderer renderer;
- /** The FOUserAgent associated with this window */
- protected FOUserAgent foUserAgent;
- /** The originally configured target resolution */
- protected float configuredTargetResolution;
- /**
- * Renderable instance that can be used to reload and re-render a document after
- * modifications.
- */
- protected Renderable renderable;
-
- /** The JCombobox to rescale the rendered page view */
- private JComboBox scale;
-
- /** The JLabel for the process status bar */
- private JLabel processStatus;
-
- /** The JLabel information status bar */
- private JLabel infoStatus;
-
- /** The main display area */
- private PreviewPanel previewPanel;
-
- /** Formats the text in the scale combobox. */
- private DecimalFormat percentFormat = new DecimalFormat("###0.0#",
- new DecimalFormatSymbols(Locale.ENGLISH));
-
- /**
- * Creates a new PreviewDialog that uses the given renderer.
- * @param foUserAgent the user agent
- * @param renderable the Renderable instance that is used to reload/re-render a document
- * after modifications.
- */
- public PreviewDialog(FOUserAgent foUserAgent, Renderable renderable) {
- renderer = (AWTRenderer) foUserAgent.getRendererOverride();
- this.foUserAgent = foUserAgent;
- this.configuredTargetResolution = this.foUserAgent.getTargetResolution();
- this.renderable = renderable;
- translator = new Translator();
-
- //Commands aka Actions
- Command printAction = new Command(translator.getString("Menu.Print"), "Print") {
- public void doit() {
- startPrinterJob(true);
- }
- };
- Command firstPageAction = new Command(translator.getString("Menu.First.page"),
- "firstpg") {
- public void doit() {
- goToFirstPage();
- }
- };
- Command previousPageAction = new Command(translator.getString("Menu.Prev.page"),
- "prevpg") {
- public void doit() {
- goToPreviousPage();
- }
- };
- Command nextPageAction = new Command(translator.getString("Menu.Next.page"), "nextpg") {
- public void doit() {
- goToNextPage();
- }
-
- };
- Command lastPageAction = new Command(translator.getString("Menu.Last.page"), "lastpg") {
- public void doit() {
- goToLastPage();
- }
- };
- Command reloadAction = new Command(translator.getString("Menu.Reload"), "reload") {
- public void doit() {
- previewPanel.reload();
- }
- };
- Command debugAction = new Command(translator.getString("Menu.Debug"), "debug") {
- // TODO use Translator
- public void doit() {
- previewPanel.debug();
- }
- };
- Command aboutAction = new Command(translator.getString("Menu.About"), "fopLogo") {
- public void doit() {
- startHelpAbout();
- }
- };
-
- setTitle("FOP: AWT-" + translator.getString("Title.Preview"));
- setDefaultCloseOperation(DISPOSE_ON_CLOSE);
-
- //Sets size to be 61%x90% of the screen size
- Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
- // Needed due to bug in Sun's JVM 1.5 (6429775)
- pack();
- //Rather frivolous size - fits A4 page width in 1024x768 screen on my desktop
- setSize(screen.width * 61 / 100, screen.height * 9 / 10);
-
- //Page view stuff
- previewPanel = new PreviewPanel(foUserAgent, renderable, renderer);
- getContentPane().add(previewPanel, BorderLayout.CENTER);
-
- // Keyboard shortcuts - pgup/pgdn
- InputMap im = previewPanel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
- ActionMap am = previewPanel.getActionMap();
- im.put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_DOWN, 0), "nextPage");
- im.put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, 0), "prevPage");
- im.put(KeyStroke.getKeyStroke(KeyEvent.VK_HOME, 0), "firstPage");
- im.put(KeyStroke.getKeyStroke(KeyEvent.VK_END, 0), "lastPage");
- previewPanel.getActionMap().put("nextPage", nextPageAction);
- previewPanel.getActionMap().put("prevPage", previousPageAction);
- previewPanel.getActionMap().put("firstPage", firstPageAction);
- previewPanel.getActionMap().put("lastPage", lastPageAction);
-
- //Scaling combobox
- scale = new JComboBox();
- scale.addItem(translator.getString("Menu.Fit.Window"));
- scale.addItem(translator.getString("Menu.Fit.Width"));
- 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.setSelectedItem("100%");
- scale.setEditable(true);
- scale.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e) {
- scaleActionPerformed(e);
- }
- });
-
- //Menu
- setJMenuBar(setupMenu());
-
- // Toolbar
- JToolBar toolBar = new JToolBar();
- toolBar.add(printAction);
- toolBar.add(reloadAction);
- toolBar.addSeparator();
- toolBar.add(firstPageAction);
- toolBar.add(previousPageAction);
- toolBar.add(nextPageAction);
- toolBar.add(lastPageAction);
- toolBar.addSeparator(new Dimension(20, 0));
- toolBar.add(new JLabel(translator.getString("Menu.Zoom") + " "));
- toolBar.add(scale);
- toolBar.addSeparator();
- toolBar.add(debugAction);
- toolBar.addSeparator();
- toolBar.add(aboutAction);
- getContentPane().add(toolBar, BorderLayout.NORTH);
-
- // Status bar
- JPanel statusBar = new JPanel();
- processStatus = new JLabel();
- processStatus.setBorder(BorderFactory.createCompoundBorder(
- BorderFactory.createEtchedBorder(),
- BorderFactory.createEmptyBorder(0, 3, 0, 0)));
- infoStatus = new JLabel();
- infoStatus.setBorder(BorderFactory.createCompoundBorder(
- BorderFactory.createEtchedBorder(),
- BorderFactory.createEmptyBorder(0, 3, 0, 0)));
-
- statusBar.setLayout(new GridBagLayout());
-
- processStatus.setPreferredSize(new Dimension(200, 21));
- processStatus.setMinimumSize(new Dimension(200, 21));
-
- infoStatus.setPreferredSize(new Dimension(100, 21));
- infoStatus.setMinimumSize(new Dimension(100, 21));
- statusBar.add(processStatus,
- new GridBagConstraints(0, 0, 1, 0, 2.0, 0.0,
- GridBagConstraints.CENTER,
- GridBagConstraints.HORIZONTAL,
- new Insets(0, 0, 0, 3), 0, 0));
- statusBar.add(infoStatus,
- new GridBagConstraints(1, 0, 1, 0, 1.0, 0.0,
- GridBagConstraints.CENTER,
- GridBagConstraints.HORIZONTAL,
- new Insets(0, 0, 0, 0), 0, 0));
- getContentPane().add(statusBar, BorderLayout.SOUTH);
- }
-
- /**
- * Creates and initialize the AWT Viewer main window.
- * @param foUserAgent the FO user agent
- * @param renderable the target for the rendering
- * @return the newly initialized preview dialog
- */
- public static PreviewDialog createPreviewDialog(FOUserAgent foUserAgent,
- Renderable renderable, boolean asMainWindow) {
- PreviewDialog frame = new PreviewDialog(foUserAgent, renderable);
-
- if (asMainWindow) {
- frame.addWindowListener(new WindowAdapter() {
- public void windowClosed(WindowEvent we) {
- System.exit(0);
- }
- });
- }
-
- // Centers the window
- Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
- Dimension frameSize = frame.getSize();
- if (frameSize.height > screenSize.height) {
- frameSize.height = screenSize.height;
- }
- if (frameSize.width > screenSize.width) {
- frameSize.width = screenSize.width;
- }
- frame.setLocation((screenSize.width - frameSize.width) / 2,
- (screenSize.height - frameSize.height) / 2);
- frame.setStatus(frame.translator.getString("Status.Build.FO.tree"));
- frame.setVisible(true);
- return frame;
- }
-
- /**
- * Creates a new PreviewDialog that uses the given renderer.
- * @param foUserAgent the user agent
- */
- public PreviewDialog(FOUserAgent foUserAgent) {
- this(foUserAgent, null);
- }
-
- /**
- * Creates a new menubar to be shown in this window.
- * @return the newly created menubar
- */
- private JMenuBar setupMenu() {
- JMenuBar menuBar = new JMenuBar();
- JMenu menu = new JMenu(translator.getString("Menu.File"));
- menu.setMnemonic(KeyEvent.VK_F);
- //Adds mostly the same actions, but without icons
- menu.add(new Command(translator.getString("Menu.Print"), KeyEvent.VK_P) {
- public void doit() {
- startPrinterJob(true);
- }
- });
- // inputHandler must be set to allow reloading
- if (renderable != null) {
- menu.add(new Command(translator.getString("Menu.Reload"), KeyEvent.VK_R) {
- public void doit() {
- reload();
- }
- });
- }
- menu.addSeparator();
- menu.add(new Command(translator.getString("Menu.Exit"), KeyEvent.VK_X) {
- public void doit() {
- dispose();
- }
- });
- menuBar.add(menu);
-
- menu = new JMenu(translator.getString("Menu.View"));
- menu.setMnemonic(KeyEvent.VK_V);
- menu.add(new Command(translator.getString("Menu.First.page"), KeyEvent.VK_F) {
- public void doit() {
- goToFirstPage();
- }
- });
- menu.add(new Command(translator.getString("Menu.Prev.page"), KeyEvent.VK_P) {
- public void doit() {
- goToPreviousPage();
- }
- });
- menu.add(new Command(translator.getString("Menu.Next.page"), KeyEvent.VK_N) {
- public void doit() {
- goToNextPage();
- }
- });
- menu.add(new Command(translator.getString("Menu.Last.page"), KeyEvent.VK_L) {
- public void doit() {
- goToLastPage();
- }
- });
- menu.add(new Command(translator.getString("Menu.Go.to.Page"), KeyEvent.VK_G) {
- public void doit() {
- showGoToPageDialog();
- }
- });
- menu.addSeparator();
- JMenu subMenu = new JMenu(translator.getString("Menu.Zoom"));
- subMenu.setMnemonic(KeyEvent.VK_Z);
- subMenu.add(new Command("25%", 0) {
- public void doit() {
- setScale(25.0);
- }
- });
- subMenu.add(new Command("50%", 0) {
- public void doit() {
- setScale(50.0);
- }
- });
- subMenu.add(new Command("75%", 0) {
- public void doit() {
- setScale(75.0);
- }
- });
- subMenu.add(new Command("100%", 0) {
- public void doit() {
- setScale(100.0);
- }
- });
- subMenu.add(new Command("150%", 0) {
- public void doit() {
- setScale(150.0);
- }
- });
- subMenu.add(new Command("200%", 0) {
- public void doit() {
- setScale(200.0);
- }
- });
- menu.add(subMenu);
- menu.addSeparator();
- menu.add(new Command(translator.getString("Menu.Default.zoom"), KeyEvent.VK_D) {
- public void doit() {
- setScale(100.0);
- }
- });
- menu.add(new Command(translator.getString("Menu.Fit.Window"), KeyEvent.VK_F) {
- public void doit() {
- setScaleToFitWindow();
- }
- });
- menu.add(new Command(translator.getString("Menu.Fit.Width"), KeyEvent.VK_W) {
- public void doit() {
- setScaleToFitWidth();
- }
- });
- menu.addSeparator();
-
- ButtonGroup group = new ButtonGroup();
- JRadioButtonMenuItem single = new JRadioButtonMenuItem(
- new Command(translator.getString("Menu.Single"), KeyEvent.VK_S) {
- public void doit() {
- previewPanel.setDisplayMode(PreviewPanel.SINGLE);
- }
- });
- JRadioButtonMenuItem cont = new JRadioButtonMenuItem(
- new Command(translator.getString("Menu.Continuous"), KeyEvent.VK_C) {
- public void doit() {
- previewPanel.setDisplayMode(PreviewPanel.CONTINUOUS);
- }
- });
- JRadioButtonMenuItem facing = new JRadioButtonMenuItem(
- new Command(translator.getString("Menu.Facing"), 0) {
- public void doit() {
- previewPanel.setDisplayMode(PreviewPanel.CONT_FACING);
- }
- });
- single.setSelected(true);
- group.add(single);
- group.add(cont);
- group.add(facing);
- menu.add(single);
- menu.add(cont);
- menu.add(facing);
-
- menuBar.add(menu);
-
- menu = new JMenu(translator.getString("Menu.Help"));
- menu.setMnemonic(KeyEvent.VK_H);
- menu.add(new Command(translator.getString("Menu.About"), KeyEvent.VK_A) {
- public void doit() {
- startHelpAbout();
- }
- });
- menuBar.add(menu);
- return menuBar;
- }
-
- /** {@inheritDoc} */
- public void notifyRendererStopped() {
- reload();
- }
-
- private void reload() {
- setStatus(translator.getString("Status.Show"));
- previewPanel.reload();
- }
-
- /**
- * Changes the current visible page
- * @param number the page number to go to
- */
- public void goToPage(int number) {
- if (number != previewPanel.getPage()) {
- previewPanel.setPage(number);
- notifyPageRendered();
- }
- }
-
- /**
- * Shows the previous page.
- */
- public void goToPreviousPage() {
- int page = previewPanel.getPage();
- if (page > 0) {
- goToPage(page - 1);
- }
- }
-
- /**
- * Shows the next page.
- */
- public void goToNextPage() {
- int page = previewPanel.getPage();
- if (page < renderer.getNumberOfPages() - 1) {
- goToPage(page + 1);
- }
- }
-
- /** Shows the first page. */
- public void goToFirstPage() {
- goToPage(0);
- }
-
- /**
- * Shows the last page.
- */
- public void goToLastPage() {
- goToPage(renderer.getNumberOfPages() - 1);
- }
-
- /** Shows the About box */
- private void startHelpAbout() {
- PreviewDialogAboutBox dlg = new PreviewDialogAboutBox(this, translator);
- //Centers the box
- 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.setVisible(true);
- }
-
- /**
- * Shows "go to page" dialog and then goes to the selected page
- */
- private void showGoToPageDialog() {
- int currentPage = previewPanel.getPage();
- GoToPageDialog d = new GoToPageDialog(this,
- translator.getString("Menu.Go.to.Page"), translator);
- d.setLocation((int)getLocation().getX() + 50,
- (int)getLocation().getY() + 50);
- d.setVisible(true);
- currentPage = d.getPageNumber();
- if (currentPage < 1 || currentPage > renderer.getNumberOfPages()) {
- return;
- }
- currentPage--;
- goToPage(currentPage);
- }
-
- /** Scales page image */
- public void setScale(double scaleFactor) {
- scale.setSelectedItem(percentFormat.format(scaleFactor) + "%");
- previewPanel.setScaleFactor(scaleFactor / 100d);
- }
-
- public void setScaleToFitWindow() {
- try {
- setScale(previewPanel.getScaleToFitWindow() * 100);
- } catch (FOPException fopEx) {
- fopEx.printStackTrace();
- }
- }
-
- public void setScaleToFitWidth() {
- try {
- setScale(previewPanel.getScaleToFitWidth() * 100);
- } catch (FOPException fopEx) {
- fopEx.printStackTrace();
- }
- }
-
- private void scaleActionPerformed(ActionEvent e) {
- int index = scale.getSelectedIndex();
- if (index == 0) {
- setScaleToFitWindow();
- } else if (index == 1) {
- setScaleToFitWidth();
- } else {
- String item = (String)scale.getSelectedItem();
- setScale(Double.parseDouble(item.substring(0, item.indexOf('%'))));
- }
- }
-
- /** Prints the document */
- public void startPrinterJob(boolean showDialog) {
- //Restore originally configured target resolution
- float saveResolution = foUserAgent.getTargetResolution();
- foUserAgent.setTargetResolution(this.configuredTargetResolution);
-
- PrinterJob pj = PrinterJob.getPrinterJob();
- pj.setPageable(renderer);
- if (!showDialog || pj.printDialog()) {
- try {
- pj.print();
- } catch (PrinterException e) {
- e.printStackTrace();
- }
- }
-
- foUserAgent.setTargetResolution(saveResolution);
- }
-
- /**
- * Sets message to be shown in the status bar in a thread safe way.
- * @param message the message
- */
- public void setStatus(String message) {
- SwingUtilities.invokeLater(new ShowStatus(message));
- }
-
- /** This class is used to show status in a thread safe way. */
- private class ShowStatus implements Runnable {
-
- /** The message to display */
- private String message;
-
- /**
- * Constructs ShowStatus thread
- * @param message message to display
- */
- public ShowStatus(String message) {
- this.message = message;
- }
-
- public void run() {
- processStatus.setText(message.toString());
- }
- }
-
- /**
- * Updates the message to be shown in the info bar in a thread safe way.
- */
- public void notifyPageRendered() {
- SwingUtilities.invokeLater(new ShowInfo());
- }
-
- /** This class is used to show info in a thread safe way. */
- private class ShowInfo implements Runnable {
-
- public void run() {
- String message = translator.getString("Status.Page") + " "
- + (previewPanel.getPage() + 1) + " "
- + translator.getString("Status.of") + " "
- + (renderer.getNumberOfPages());
- infoStatus.setText(message);
- }
- }
-
- /**
- * Opens standard Swing error dialog box and reports given exception details.
- * @param e the Exception
- */
- public void reportException(Exception e) {
- String msg = translator.getString("Exception.Occured");
- setStatus(msg);
- JOptionPane.showMessageDialog(
- getContentPane(),
- "<html><b>" + msg + ":</b><br>"
- + e.getClass().getName() + "<br>"
- + e.getMessage() + "</html>",
- translator.getString("Exception.Error"),
- JOptionPane.ERROR_MESSAGE
- );
- }
- }
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