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1
51 package org.apache.fop.viewer;
52
53
63
64 import java.awt.*;
65 import java.awt.print.*;
66 import java.awt.event.*;
67 import java.awt.image.BufferedImage  ;
68 import java.util.StringTokenizer ;
69 import java.util.Vector ;
70
71 import javax.swing.*;
72
73 import org.apache.fop.render.awt.*;
74 import org.apache.fop.messaging.*;
75 import org.apache.fop.apps.AWTStarter;
76 import org.apache.fop.apps.FOPException;
77
78
81 public class PreviewDialog extends JFrame implements ProgressListener,
82 MessageListener {
83
84 protected Translator res;
85
86 protected int currentPage = 0;
87 protected int pageCount = 0;
88
89 protected AWTRenderer renderer;
90 protected AWTStarter starter;
91
92 protected IconToolBar toolBar = new IconToolBar();
93
94 protected Command printAction;
95 protected Command firstPageAction;
96 protected Command previousPageAction;
97 protected Command nextPageAction;
98 protected Command lastPageAction;
99 protected Command reloadAction;
100 protected Reloader reloader;
101
102 protected JLabel zoomLabel =
103 new JLabel();
105 protected JComboBox scale = new JComboBox() {
106 public float getAlignmentY() {
107 return 0.5f;
108 }
109 };
110
111 protected JScrollPane previewArea = new JScrollPane();
112 protected JPanel statusBar = new JPanel();
114 protected GridBagLayout statusBarLayout = new GridBagLayout();
115
116 protected JLabel statisticsStatus = new JLabel();
117 protected JLabel processStatus = new JLabel();
118 protected JLabel infoStatus = new JLabel();
119 protected JLabel previewImageLabel = new JLabel();
120
121
128 public PreviewDialog(AWTStarter aStarter, AWTRenderer aRenderer, Translator aRes) {
129 this(aRenderer, aRes);
130 starter = aStarter;
131 }
132
133
139 public PreviewDialog(AWTRenderer aRenderer, Translator aRes) {
140 res = aRes;
141 renderer = aRenderer;
142
143 printAction = new Command(res.getString("Print"), "Print") {
144 public void doit() {
145 print();
146 }
147 };
148
149 firstPageAction = new Command(res.getString("First page"),
150 "firstpg") {
151 public void doit() {
152 goToFirstPage(null);
153 }
154
155 };
156
157 previousPageAction = new Command(res.getString("Previous page"),
158 "prevpg") {
159 public void doit() {
160 goToPreviousPage(null);
161 }
162 };
163
164 nextPageAction = new Command(res.getString("Next page"), "nextpg") {
165 public void doit() {
166 goToNextPage(null);
167 }
168 };
169
170 lastPageAction = new Command(res.getString("Last page"), "lastpg") {
171 public void doit() {
172 goToLastPage(null);
173 }
174 };
175
176 reloadAction = new Command(res.getString("Reload"), "reload") {
177 public void doit() {
178 reload(null);
179 }
180 };
181
182 setDefaultCloseOperation(DISPOSE_ON_CLOSE);
183 this.setSize(new Dimension(379, 476));
184 previewArea.setMinimumSize(new Dimension(50, 50));
185
186 this.setTitle("FOP: AWT-" + res.getString("Preview"));
187
188 scale.addItem("25");
189 scale.addItem("50");
190 scale.addItem("75");
191 scale.addItem("100");
192 scale.addItem("150");
193 scale.addItem("200");
194
195 scale.setMaximumSize(new Dimension(80, 24));
196 scale.setPreferredSize(new Dimension(80, 24));
197
198 scale.addActionListener(new java.awt.event.ActionListener () {
199 public void actionPerformed(ActionEvent e) {
200 scale_actionPerformed(e);
201 }
202 });
203
204 scale.setSelectedItem("100");
205 renderer.setScaleFactor(100.0);
206
207 zoomLabel.setText(res.getString("Zoom"));
208
209 this.setJMenuBar(setupMenue());
210
211 this.getContentPane().add(toolBar, BorderLayout.NORTH);
212
213 toolBar.add(printAction);
214 toolBar.add(reloadAction);
215 toolBar.addSeparator();
216 toolBar.add(firstPageAction);
217 toolBar.add(previousPageAction);
218 toolBar.add(nextPageAction);
219 toolBar.add(lastPageAction);
220 toolBar.addSeparator();
221 toolBar.add(zoomLabel, null);
222 toolBar.addSeparator();
223 toolBar.add(scale, null);
224
225 this.getContentPane().add(previewArea, BorderLayout.CENTER);
226 this.getContentPane().add(statusBar, BorderLayout.SOUTH);
227
228 statisticsStatus.setBorder(BorderFactory.createEtchedBorder());
229 processStatus.setBorder(BorderFactory.createEtchedBorder());
230 infoStatus.setBorder(BorderFactory.createEtchedBorder());
231
232 statusBar.setLayout(statusBarLayout);
233
234 processStatus.setPreferredSize(new Dimension(200, 21));
235 statisticsStatus.setPreferredSize(new Dimension(100, 21));
236 infoStatus.setPreferredSize(new Dimension(100, 21));
237 processStatus.setMinimumSize(new Dimension(200, 21));
238 statisticsStatus.setMinimumSize(new Dimension(100, 21));
239 infoStatus.setMinimumSize(new Dimension(100, 21));
240 statusBar.add(processStatus,
241 new GridBagConstraints(0, 0, 2, 1, 2.0, 0.0,
242 GridBagConstraints.CENTER,
243 GridBagConstraints.HORIZONTAL,
244 new Insets(0, 0, 0, 5), 0, 0));
245 statusBar.add(statisticsStatus,
246 new GridBagConstraints(2, 0, 1, 2, 1.0, 0.0,
247 GridBagConstraints.CENTER,
248 GridBagConstraints.HORIZONTAL,
249 new Insets(0, 0, 0, 5), 0, 0));
250 statusBar.add(infoStatus,
251 new GridBagConstraints(3, 0, 1, 1, 1.0, 0.0,
252 GridBagConstraints.CENTER,
253 GridBagConstraints.HORIZONTAL,
254 new Insets(0, 0, 0, 0), 0, 0));
255
256 previewArea.getViewport().add(previewImageLabel);
257 showPage();
258 }
259
260
265 private JMenuBar setupMenue() {
266 JMenuBar menuBar;
267 JMenuItem menuItem;
268 JMenu menu;
269 JMenu subMenu;
270
271 menuBar = new JMenuBar();
272 menu = new JMenu(res.getString("File"));
273 subMenu = new JMenu("OutputFormat");
274 subMenu.add(new Command("mHTML"));
275 subMenu.add(new Command("mPDF"));
276 subMenu.add(new Command("mRTF"));
277 subMenu.add(new Command("mTEXT"));
278 menu.add(new Command(res.getString("Print")) {
281 public void doit() {
282 print();
283 }
284 });
285 menu.add(new Command(res.getString("Reload")) {
286 public void doit() {
287 reload(null);
288 }
289 });
290 menu.addSeparator();
291 menu.add(new Command(res.getString("Exit")) {
292 public void doit() {
293 dispose();
294 }
295 });
296 menuBar.add(menu);
297 menu = new JMenu(res.getString("View"));
298 menu.add(new Command(res.getString("First page")) {
299 public void doit() {
300 goToFirstPage(null);
301 }
302 });
303 menu.add(new Command(res.getString("Previous page")) {
304 public void doit() {
305 goToPreviousPage(null);
306 }
307 });
308 menu.add(new Command(res.getString("Next page")) {
309 public void doit() {
310 goToNextPage(null);
311 }
312 });
313 menu.add(new Command(res.getString("Last page")) {
314 public void doit() {
315 goToLastPage(null);
316 }
317 });
318 menu.add(new Command(res.getString("Go to Page") + " ...") {
319 public void doit() {
320 goToPage(null);
321 }
322 });
323 menu.addSeparator();
324 subMenu = new JMenu(res.getString("Zoom"));
325 subMenu.add(new Command("25%") {
326 public void doit() {
327 setScale(25.0);
328 }
329 });
330 subMenu.add(new Command("50%") {
331 public void doit() {
332 setScale(50.0);
333 }
334 });
335 subMenu.add(new Command("75%") {
336 public void doit() {
337 setScale(75.0);
338 }
339 });
340 subMenu.add(new Command("100%") {
341 public void doit() {
342 setScale(100.0);
343 }
344 });
345 subMenu.add(new Command("150%") {
346 public void doit() {
347 setScale(150.0);
348 }
349 });
350 subMenu.add(new Command("200%") {
351 public void doit() {
352 setScale(200.0);
353 }
354 });
355 menu.add(subMenu);
356 menu.addSeparator();
357 menu.add(new Command(res.getString("Default zoom")) {
358 public void doit() {
359 setScale(100.0);
360 }
361 });
362 menuBar.add(menu);
363 menu = new JMenu(res.getString("Help"));
364 menu.add(new Command(res.getString("Index")));
365 menu.addSeparator();
366 menu.add(new Command(res.getString("Introduction")));
367 menu.addSeparator();
368 menu.add(new Command(res.getString("About")) {
369 public void doit() {
370 startHelpAbout(null);
371 }
372 });
373 menuBar.add(menu);
374 return menuBar;
375 }
376
377
382 public void startHelpAbout(ActionEvent e) {
383 PreviewDialogAboutBox dlg = new PreviewDialogAboutBox(this);
384 Dimension dlgSize = dlg.getPreferredSize();
385 Dimension frmSize = getSize();
386 Point loc = getLocation();
387 dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
388 (frmSize.height - dlgSize.height) / 2 + loc.y);
389 dlg.setModal(true);
390 dlg.show();
391 }
392
393
398 private void goToPage(int number) {
399 currentPage = number;
400 renderer.setPageNumber(number);
401 showPage();
402 }
403
404
407 private void goToPreviousPage(ActionEvent e) {
408 if (currentPage <= 0)
409 return;
410 currentPage--;
411 goToPage(currentPage);
412 }
413
414
417 private void goToNextPage(ActionEvent e) {
418 if (currentPage >= pageCount - 1)
419 return;
420 currentPage++;
421 goToPage(currentPage);
422 }
423
424
427 private void goToLastPage(ActionEvent e) {
428 if (currentPage == pageCount - 1)
429 return;
430 currentPage = pageCount - 1;
431 goToPage(currentPage);
432 }
433
434
437 private synchronized void reload(ActionEvent e) {
438 if (reloader == null || !reloader.isAlive()) {
439 reloader = new Reloader();
440 reloader.start();
441 }
442 }
443
444
448 private class Reloader extends Thread {
449 public void run() {
450 previewImageLabel.setIcon(null);
451 statisticsStatus.setText("");
452 while (renderer.getPageCount() != 0)
454 renderer.removePage(0);
455 try {
456 starter.run();
457 } catch (FOPException e) {
458 e.printStackTrace();
459 }
460 }
461 }
462
463
466 private void goToPage(ActionEvent e) {
467 GoToPageDialog d = new GoToPageDialog(this,
468 res.getString("Go to Page"),
469 true,
470 res);
471 d.setLocation((int)getLocation().getX() + 50,
472 (int)getLocation().getY() + 50);
473 d.show();
474 currentPage = d.getPageNumber();
475
476 if (currentPage < 1 || currentPage > pageCount)
477 return;
478
479 currentPage--;
480
481 goToPage(currentPage);
482 }
483
484
487 private void goToFirstPage(ActionEvent e) {
488 if (currentPage == 0)
489 return;
490 currentPage = 0;
491 goToPage(currentPage);
492 }
493
494 private void print() {
495 PrinterJob pj = PrinterJob.getPrinterJob();
496 pj.setPageable(renderer);
499
500 if (pj.printDialog()) {
501 try {
502 pj.print();
503 } catch (PrinterException pe) {
504 pe.printStackTrace();
505 }
506 }
507 }
508
509 public void setScale(double scaleFactor) {
510 if (scaleFactor == 25.0)
511 scale.setSelectedIndex(0);
512 else if (scaleFactor == 50.0)
513 scale.setSelectedIndex(1);
514 else if (scaleFactor == 75.0)
515 scale.setSelectedIndex(2);
516 else if (scaleFactor == 100.0)
517 scale.setSelectedIndex(3);
518 else if (scaleFactor == 150.0)
519 scale.setSelectedIndex(4);
520 else if (scaleFactor == 200.0)
521 scale.setSelectedIndex(5);
522
523 renderer.setScaleFactor(scaleFactor);
524 showPage();
525 }
526
527 void scale_actionPerformed(ActionEvent e) {
528 setScale(new Double ((String )scale.getSelectedItem()).doubleValue());
529 }
530
531 public void progress(int percentage) {
532 progress(new String (percentage + "%"));
533 }
534
535 public void progress(int percentage, String message) {
536 progress(new String (message + " " + percentage + "%"));
537 }
538
539
544 public void progress(String message) {
545 SwingUtilities.invokeLater(new showProgress(message, false));
546 }
547
548
552 class showProgress implements Runnable {
553
556 Object message;
557
558
562 boolean isErrorMessage = false;
563
564
569 public showProgress(Object message, boolean isErrorMessage) {
570 this.message = message;
571 this.isErrorMessage = isErrorMessage;
572 }
573
574 public void run() {
575 if (isErrorMessage) {
576 JOptionPane.showMessageDialog(null, message, "Error",
577 JOptionPane.ERROR_MESSAGE);
578 } else
579 processStatus.setText(message.toString());
580 }
581 }
582
583 public void showPage() {
584 showPageImage viewer = new showPageImage();
585
586 if (SwingUtilities.isEventDispatchThread()) {
587 viewer.run();
588 } else
589 SwingUtilities.invokeLater(viewer);
590 }
591
592
596 class showPageImage implements Runnable {
597
598
601
602 public void run() {
603 BufferedImage pageImage = null;
604 Graphics graphics = null;
605
606 renderer.render(currentPage);
607 pageImage = renderer.getLastRenderedPage();
608 if (pageImage == null)
609 return;
610 graphics = pageImage.getGraphics();
611 graphics.setColor(Color.black);
612 graphics.drawRect(0, 0, pageImage.getWidth() - 1,
613 pageImage.getHeight() - 1);
614
615 previewImageLabel.setIcon(new ImageIcon(pageImage));
616
617 pageCount = renderer.getPageCount();
618
619 statisticsStatus.setText(res.getString("Page") + " "
620 + (currentPage + 1) + " "
621 + res.getString("of") + " " + pageCount);
622 }
623 }
624
625
629 public void processMessage(MessageEvent event) {
630 String error = event.getMessage();
631 String text = processStatus.getText();
632 FontMetrics fmt =
633 processStatus.getFontMetrics(processStatus.getFont());
634 int width = processStatus.getWidth() - fmt.stringWidth("...");
635 showProgress showIt;
636
637 if (event.getMessageType() == event.LOG) {
638 if (!text.endsWith("\n")) {
639 text = text + error;
640 while (fmt.stringWidth(text) > width) {
641 text = text.substring(1);
642 width = processStatus.getWidth() - fmt.stringWidth("...");
643 }
644 } else
645 text = error;
646 progress(text);
647 } else {
648 error = error.trim();
649 if (error.equals(">")) {
650 text = text + error;
651 while (fmt.stringWidth(text) > width) {
652 text = text.substring(1);
653 width = processStatus.getWidth() - fmt.stringWidth("...");
654 }
655 progress(processStatus.getText() + error);
656 return;
657 }
658 if (error.equals(""))
659 return;
660 if (error.length() < 60) {
661 showIt = new showProgress(error, true);
662 } else {
663 StringTokenizer tok = new StringTokenizer (error, " ");
664 Vector labels = new Vector ();
665 StringBuffer buffer = new StringBuffer ();
666 String tmp, list[];
667
668 while (tok.hasMoreTokens()) {
669 tmp = tok.nextToken();
670 if ((buffer.length() + tmp.length() + 1) < 60) {
671 buffer.append(" ").append(tmp);
672 } else {
673 labels.add(buffer.toString());
674 buffer = new StringBuffer ();
675 buffer.append(tmp);
676 }
677 }
678 labels.add(buffer.toString());
679 list = new String [labels.size()];
680 for (int i = 0; i < labels.size(); i++) {
681 list[i] = labels.get(i).toString();
682 }
683 showIt = new showProgress(list, true);
684 }
685 if (SwingUtilities.isEventDispatchThread()) {
686 showIt.run();
687 } else {
688 try {
689 SwingUtilities.invokeAndWait(showIt);
690 } catch (Exception e) {
691 e.printStackTrace();
692 progress(event.getMessage());
693 }
694 }
695 }
696 }
697
698 public void reportException(Exception e) {
699 String msg = res.getString("An exception has occured");
700 progress(msg);
701 JOptionPane.showMessageDialog(
702 getContentPane(),
703 "<html><b>" + msg + ":</b><br>"
704 + e.getClass().getName() + "<br>" + e.getMessage() + "</html>", res.getString("Fatal error"),
705 JOptionPane.ERROR_MESSAGE
706 );
707 }
708
709 } |
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