1 /*
2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.print;
27
28 import java.awt.Color;
29 import java.awt.Component;
30 import java.awt.Font;
31 import java.awt.FontMetrics;
32 import java.awt.GraphicsEnvironment;
33 import java.awt.Graphics;
34 import java.awt.Graphics2D;
35 import java.awt.HeadlessException;
36 import java.awt.Rectangle;
37 import java.awt.Shape;
38
39 import java.awt.image.BufferedImage;
40
41 import java.awt.font.FontRenderContext;
42
43 import java.awt.geom.AffineTransform;
44 import java.awt.geom.PathIterator;
45 import java.awt.geom.Rectangle2D;
46
47 import java.awt.image.BufferedImage;
48
49 import java.awt.peer.FontPeer;
50 import java.awt.print.Pageable;
51 import java.awt.print.PageFormat;
52 import java.awt.print.Paper;
53 import java.awt.print.Printable;
54 import java.awt.print.PrinterException;
55 import java.awt.print.PrinterIOException;
56 import java.awt.print.PrinterJob;
57
58 import javax.print.DocFlavor;
59 import javax.print.PrintService;
60 import javax.print.StreamPrintService;
61 import javax.print.attribute.HashPrintRequestAttributeSet;
62 import javax.print.attribute.PrintRequestAttributeSet;
63 import javax.print.attribute.PrintServiceAttributeSet;
64 import javax.print.attribute.standard.PrinterName;
65 import javax.print.attribute.standard.Chromaticity;
66 import javax.print.attribute.standard.Copies;
67 import javax.print.attribute.standard.Destination;
68 import javax.print.attribute.standard.DialogTypeSelection;
69 import javax.print.attribute.standard.JobName;
70 import javax.print.attribute.standard.Sides;
71 import javax.print.attribute.standard.MediaPrintableArea;
72
73 import java.io.BufferedInputStream;
74 import java.io.BufferedOutputStream;
75 import java.io.BufferedReader;
76 import java.io.CharConversionException;
77 import java.io.File;
78 import java.io.InputStream;
79 import java.io.InputStreamReader;
80 import java.io.IOException;
81 import java.io.FileInputStream;
82 import java.io.FileOutputStream;
83 import java.io.OutputStream;
84 import java.io.PrintStream;
85 import java.io.PrintWriter;
86 import java.io.StringWriter;
87
88 import java.util.ArrayList;
89 import java.util.Enumeration;
90 import java.util.Locale;
91 import java.util.Properties;
92
93 import sun.awt.CharsetString;
94 import sun.awt.FontConfiguration;
95 import sun.awt.FontDescriptor;
96 import sun.awt.PlatformFont;
97 import sun.awt.SunToolkit;
98 import sun.font.FontAccess;
99 import sun.font.FontManagerFactory;
100 import sun.font.FontUtilities;
101
102 import java.nio.charset.*;
103 import java.nio.CharBuffer;
104 import java.nio.ByteBuffer;
105 import java.nio.file.Files;
106
107 //REMIND: Remove use of this class when IPPPrintService is moved to share directory.
108 import java.lang.reflect.Method;
109 import javax.print.attribute.standard.JobSheets;
110
111 /**
112 * A class which initiates and executes a PostScript printer job.
113 *
114 * @author Richard Blanchard
115 */
116 public class PSPrinterJob extends RasterPrinterJob {
117
118 /* Class Constants */
119
120 /**
121 * Passed to the {@code setFillMode}
122 * method this value forces fills to be
123 * done using the even-odd fill rule.
124 */
125 protected static final int FILL_EVEN_ODD = 1;
126
127 /**
128 * Passed to the {@code setFillMode}
129 * method this value forces fills to be
130 * done using the non-zero winding rule.
131 */
132 protected static final int FILL_WINDING = 2;
133
134 /* PostScript has a 64K maximum on its strings.
135 */
136 private static final int MAX_PSSTR = (1024 * 64 - 1);
137
138 private static final int RED_MASK = 0x00ff0000;
139 private static final int GREEN_MASK = 0x0000ff00;
140 private static final int BLUE_MASK = 0x000000ff;
141
142 private static final int RED_SHIFT = 16;
143 private static final int GREEN_SHIFT = 8;
144 private static final int BLUE_SHIFT = 0;
145
146 private static final int LOWNIBBLE_MASK = 0x0000000f;
147 private static final int HINIBBLE_MASK = 0x000000f0;
148 private static final int HINIBBLE_SHIFT = 4;
149 private static final byte hexDigits[] = {
150 (byte)'0', (byte)'1', (byte)'2', (byte)'3',
151 (byte)'4', (byte)'5', (byte)'6', (byte)'7',
152 (byte)'8', (byte)'9', (byte)'A', (byte)'B',
153 (byte)'C', (byte)'D', (byte)'E', (byte)'F'
154 };
155
156 private static final int PS_XRES = 300;
157 private static final int PS_YRES = 300;
158
159 private static final String ADOBE_PS_STR = "%!PS-Adobe-3.0";
160 private static final String EOF_COMMENT = "%%EOF";
161 private static final String PAGE_COMMENT = "%%Page: ";
162
163 private static final String READIMAGEPROC = "/imStr 0 def /imageSrc " +
164 "{currentfile /ASCII85Decode filter /RunLengthDecode filter " +
165 " imStr readstring pop } def";
166
167 private static final String COPIES = "/#copies exch def";
168 private static final String PAGE_SAVE = "/pgSave save def";
169 private static final String PAGE_RESTORE = "pgSave restore";
170 private static final String SHOWPAGE = "showpage";
171 private static final String IMAGE_SAVE = "/imSave save def";
172 private static final String IMAGE_STR = " string /imStr exch def";
173 private static final String IMAGE_RESTORE = "imSave restore";
174
175 private static final String SetFontName = "F";
176
177 private static final String DrawStringName = "S";
178
179 /**
180 * The PostScript invocation to fill a path using the
181 * even-odd rule. (eofill)
182 */
183 private static final String EVEN_ODD_FILL_STR = "EF";
184
185 /**
186 * The PostScript invocation to fill a path using the
187 * non-zero winding rule. (fill)
188 */
189 private static final String WINDING_FILL_STR = "WF";
190
191 /**
192 * The PostScript to set the clip to be the current path
193 * using the even odd rule. (eoclip)
194 */
195 private static final String EVEN_ODD_CLIP_STR = "EC";
196
197 /**
198 * The PostScript to set the clip to be the current path
199 * using the non-zero winding rule. (clip)
200 */
201 private static final String WINDING_CLIP_STR = "WC";
202
203 /**
204 * Expecting two numbers on the PostScript stack, this
205 * invocation moves the current pen position. (moveto)
206 */
207 private static final String MOVETO_STR = " M";
208 /**
209 * Expecting two numbers on the PostScript stack, this
210 * invocation draws a PS line from the current pen
211 * position to the point on the stack. (lineto)
212 */
213 private static final String LINETO_STR = " L";
214
215 /**
216 * This PostScript operator takes two control points
217 * and an ending point and using the current pen
218 * position as a starting point adds a bezier
219 * curve to the current path. (curveto)
220 */
221 private static final String CURVETO_STR = " C";
222
223 /**
224 * The PostScript to pop a state off of the printer's
225 * gstate stack. (grestore)
226 */
227 private static final String GRESTORE_STR = "R";
228 /**
229 * The PostScript to push a state on to the printer's
230 * gstate stack. (gsave)
231 */
232 private static final String GSAVE_STR = "G";
233
234 /**
235 * Make the current PostScript path an empty path. (newpath)
236 */
237 private static final String NEWPATH_STR = "N";
238
239 /**
240 * Close the current subpath by generating a line segment
241 * from the current position to the start of the subpath. (closepath)
242 */
243 private static final String CLOSEPATH_STR = "P";
244
245 /**
246 * Use the three numbers on top of the PS operator
247 * stack to set the rgb color. (setrgbcolor)
248 */
249 private static final String SETRGBCOLOR_STR = " SC";
250
251 /**
252 * Use the top number on the stack to set the printer's
253 * current gray value. (setgray)
254 */
255 private static final String SETGRAY_STR = " SG";
256
257 /* Instance Variables */
258
259 private int mDestType;
260
261 private String mDestination = "lp";
262
263 private boolean mNoJobSheet = false;
264
265 private String mOptions;
266
267 private Font mLastFont;
268
269 private Color mLastColor;
270
271 private Shape mLastClip;
272
273 private AffineTransform mLastTransform;
274
275 private double xres = PS_XRES;
276 private double yres = PS_XRES;
277
278 /* non-null if printing EPS for Java Plugin */
279 private EPSPrinter epsPrinter = null;
280
281 /**
282 * The metrics for the font currently set.
283 */
284 FontMetrics mCurMetrics;
285
286 /**
287 * The output stream to which the generated PostScript
288 * is written.
289 */
290 PrintStream mPSStream;
291
292 /* The temporary file to which we spool before sending to the printer */
293
294 File spoolFile;
295
296 /**
297 * This string holds the PostScript operator to
298 * be used to fill a path. It can be changed
299 * by the {@code setFillMode} method.
300 */
301 private String mFillOpStr = WINDING_FILL_STR;
302
303 /**
304 * This string holds the PostScript operator to
305 * be used to clip to a path. It can be changed
306 * by the {@code setFillMode} method.
307 */
308 private String mClipOpStr = WINDING_CLIP_STR;
309
310 /**
311 * A stack that represents the PostScript gstate stack.
312 */
313 ArrayList<GState> mGStateStack = new ArrayList<>();
314
315 /**
316 * The x coordinate of the current pen position.
317 */
318 private float mPenX;
319
320 /**
321 * The y coordinate of the current pen position.
322 */
323 private float mPenY;
324
325 /**
326 * The x coordinate of the starting point of
327 * the current subpath.
328 */
329 private float mStartPathX;
330
331 /**
332 * The y coordinate of the starting point of
333 * the current subpath.
334 */
335 private float mStartPathY;
336
337 /**
338 * An optional mapping of fonts to PostScript names.
339 */
340 private static Properties mFontProps = null;
341
342 private static boolean isMac;
343
344 /* Class static initialiser block */
345 static {
346 //enable priviledges so initProps can access system properties,
347 // open the property file, etc.
348 java.security.AccessController.doPrivileged(
349 new java.security.PrivilegedAction<Object>() {
350 public Object run() {
351 mFontProps = initProps();
352 String osName = System.getProperty("os.name");
353 isMac = osName.startsWith("Mac");
354 return null;
355 }
356 });
357 }
358
359 /*
360 * Initialize PostScript font properties.
361 * Copied from PSPrintStream
362 */
363 private static Properties initProps() {
364 // search psfont.properties for fonts
365 // and create and initialize fontProps if it exist.
366
367 String jhome = System.getProperty("java.home");
368
369 if (jhome != null){
370 String ulocale = SunToolkit.getStartupLocale().getLanguage();
371 try {
372
373 File f = new File(jhome + File.separator +
374 "lib" + File.separator +
375 "psfontj2d.properties." + ulocale);
376
377 if (!f.canRead()){
378
379 f = new File(jhome + File.separator +
380 "lib" + File.separator +
381 "psfont.properties." + ulocale);
382 if (!f.canRead()){
383
384 f = new File(jhome + File.separator + "lib" +
385 File.separator + "psfontj2d.properties");
386
387 if (!f.canRead()){
388
389 f = new File(jhome + File.separator + "lib" +
390 File.separator + "psfont.properties");
391
392 if (!f.canRead()){
393 return (Properties)null;
394 }
395 }
396 }
397 }
398
399 // Load property file
400 InputStream in =
401 new BufferedInputStream(new FileInputStream(f.getPath()));
402 Properties props = new Properties();
403 props.load(in);
404 in.close();
405 return props;
406 } catch (Exception e){
407 return (Properties)null;
408 }
409 }
410 return (Properties)null;
411 }
412
413 /* Constructors */
414
415 public PSPrinterJob()
416 {
417 }
418
419 /* Instance Methods */
420
421 /**
422 * Presents the user a dialog for changing properties of the
423 * print job interactively.
424 * @return false if the user cancels the dialog and
425 * true otherwise.
426 * @exception HeadlessException if GraphicsEnvironment.isHeadless()
427 * returns true.
428 * @see java.awt.GraphicsEnvironment#isHeadless
429 */
430 public boolean printDialog() throws HeadlessException {
431
432 if (GraphicsEnvironment.isHeadless()) {
433 throw new HeadlessException();
434 }
435
436 if (attributes == null) {
437 attributes = new HashPrintRequestAttributeSet();
438 }
439 attributes.add(new Copies(getCopies()));
440 attributes.add(new JobName(getJobName(), null));
441
442 boolean doPrint = false;
443 DialogTypeSelection dts =
444 (DialogTypeSelection)attributes.get(DialogTypeSelection.class);
445 if (dts == DialogTypeSelection.NATIVE) {
446 // Remove DialogTypeSelection.NATIVE to prevent infinite loop in
447 // RasterPrinterJob.
448 attributes.remove(DialogTypeSelection.class);
449 doPrint = printDialog(attributes);
450 // restore attribute
451 attributes.add(DialogTypeSelection.NATIVE);
452 } else {
453 doPrint = printDialog(attributes);
454 }
455
456 if (doPrint) {
457 JobName jobName = (JobName)attributes.get(JobName.class);
458 if (jobName != null) {
459 setJobName(jobName.getValue());
460 }
461 Copies copies = (Copies)attributes.get(Copies.class);
462 if (copies != null) {
463 setCopies(copies.getValue());
464 }
465
466 Destination dest = (Destination)attributes.get(Destination.class);
467
468 if (dest != null) {
469 try {
470 mDestType = RasterPrinterJob.FILE;
471 mDestination = (new File(dest.getURI())).getPath();
472 } catch (Exception e) {
473 mDestination = "out.ps";
474 }
475 } else {
476 mDestType = RasterPrinterJob.PRINTER;
477 PrintService pServ = getPrintService();
478 if (pServ != null) {
479 mDestination = pServ.getName();
480 if (isMac) {
481 PrintServiceAttributeSet psaSet = pServ.getAttributes() ;
482 if (psaSet != null) {
483 mDestination = psaSet.get(PrinterName.class).toString();
484 }
485 }
486 }
487 }
488 }
489
490 return doPrint;
491 }
492
493 @Override
494 protected void validatePaper(Paper origPaper, Paper newPaper) {
495 if (origPaper == null || newPaper == null) {
496 return;
497 } else {
498 double wid = origPaper.getWidth();
499 double hgt = origPaper.getHeight();
500 double ix = origPaper.getImageableX();
501 double iy = origPaper.getImageableY();
502 double iw = origPaper.getImageableWidth();
503 double ih = origPaper.getImageableHeight();
504 double imgX, imgY, imgWid, imgHgt;
505
506 /*
507 * this returns the imageable area of default media of chosen printer
508 * from CUPS via CUPSPrinter#getPageSizes().
509 * If it returns null (which should not be the case) we fall back
510 * to default Paper (Letter in US, A4 otherwise) imageable area
511 */
512 MediaPrintableArea mpa = (MediaPrintableArea)
513 getPrintService().getDefaultAttributeValue(MediaPrintableArea.class);
514 if (mpa != null) {
515 imgX = mpa.getX(MediaPrintableArea.INCH) * 72;
516 imgY = mpa.getY(MediaPrintableArea.INCH) * 72;
517 imgWid = mpa.getWidth(MediaPrintableArea.INCH) * 72;
518 imgHgt = mpa.getHeight(MediaPrintableArea.INCH) * 72;
519 } else {
520 imgX = newPaper.getImageableX();
521 imgY = newPaper.getImageableY();
522 imgWid = newPaper.getImageableWidth();
523 imgHgt = newPaper.getImageableHeight();
524 }
525
526 wid = ((wid > 0.0) ? wid : newPaper.getWidth());
527 hgt = ((hgt > 0.0) ? hgt : newPaper.getHeight());
528 if ((imgX*2) + imgWid > wid) {
529 imgWid = wid - imgX*2;
530 }
531 if ((imgY*2) + imgHgt > hgt) {
532 imgHgt = hgt - imgY*2;
533 }
534
535 /* We try to mitigate the effects of floating point rounding errors
536 * by only setting a value if it would differ from the value in the
537 * target by at least 0.10 points = 1/720 inches.
538 * eg if the values present in the target are close to the calculated
539 * values then we accept the target.
540 */
541 final double epsilon = 0.10;
542
543 if (ix < 0.0) {
544 ix = 0.0;
545 }
546 if (iy < 0.0) {
547 iy = 0.0;
548 }
549 if (iw < 0.0) {
550 iw = 0.0;
551 }
552 if (ih < 0.0) {
553 ih = 0.0;
554 }
555 if ((ix + epsilon) < imgX) {
556 ix = imgX;
557 }
558 if ((iy + epsilon) < imgY) {
559 iy = imgY;
560 }
561 if (iw + epsilon > imgWid) {
562 iw = imgWid;
563 }
564 if (ih + epsilon > imgHgt) {
565 ih = imgHgt;
566 }
567 if ((ix + iw + epsilon) > (imgX + imgWid)) {
568 ix = (imgX + imgWid) - iw;
569 }
570 if ((iy + ih + epsilon) > (imgY + imgHgt)) {
571 iy = (imgY + imgHgt) - ih;
572 }
573
574 newPaper.setSize(wid, hgt);
575 newPaper.setImageableArea(ix, iy, iw, ih);
576 }
577 }
578
579 /**
580 * Invoked by the RasterPrinterJob super class
581 * this method is called to mark the start of a
582 * document.
583 */
584 protected void startDoc() throws PrinterException {
585
586 // A security check has been performed in the
587 // java.awt.print.printerJob.getPrinterJob method.
588 // We use an inner class to execute the privilged open operations.
589 // Note that we only open a file if it has been nominated by
590 // the end-user in a dialog that we ouselves put up.
591
592 OutputStream output = null;
593
594 if (epsPrinter == null) {
595 if (getPrintService() instanceof PSStreamPrintService) {
596 StreamPrintService sps = (StreamPrintService)getPrintService();
597 mDestType = RasterPrinterJob.STREAM;
598 if (sps.isDisposed()) {
599 throw new PrinterException("service is disposed");
600 }
601 output = sps.getOutputStream();
602 if (output == null) {
603 throw new PrinterException("Null output stream");
604 }
605 } else {
606 /* REMIND: This needs to be more maintainable */
607 mNoJobSheet = super.noJobSheet;
608 if (super.destinationAttr != null) {
609 mDestType = RasterPrinterJob.FILE;
610 mDestination = super.destinationAttr;
611 }
612 if (mDestType == RasterPrinterJob.FILE) {
613 try {
614 spoolFile = new File(mDestination);
615 output = new FileOutputStream(spoolFile);
616 } catch (IOException ex) {
617 abortDoc();
618 throw new PrinterIOException(ex);
619 }
620 } else {
621 PrinterOpener po = new PrinterOpener();
622 java.security.AccessController.doPrivileged(po);
623 if (po.pex != null) {
624 throw po.pex;
625 }
626 output = po.result;
627 }
628 }
629
630 mPSStream = new PrintStream(new BufferedOutputStream(output));
631 mPSStream.println(ADOBE_PS_STR);
632 }
633
634 mPSStream.println("%%BeginProlog");
635 mPSStream.println(READIMAGEPROC);
636 mPSStream.println("/BD {bind def} bind def");
637 mPSStream.println("/D {def} BD");
638 mPSStream.println("/C {curveto} BD");
639 mPSStream.println("/L {lineto} BD");
640 mPSStream.println("/M {moveto} BD");
641 mPSStream.println("/R {grestore} BD");
642 mPSStream.println("/G {gsave} BD");
643 mPSStream.println("/N {newpath} BD");
644 mPSStream.println("/P {closepath} BD");
645 mPSStream.println("/EC {eoclip} BD");
646 mPSStream.println("/WC {clip} BD");
647 mPSStream.println("/EF {eofill} BD");
648 mPSStream.println("/WF {fill} BD");
649 mPSStream.println("/SG {setgray} BD");
650 mPSStream.println("/SC {setrgbcolor} BD");
651 mPSStream.println("/ISOF {");
652 mPSStream.println(" dup findfont dup length 1 add dict begin {");
653 mPSStream.println(" 1 index /FID eq {pop pop} {D} ifelse");
654 mPSStream.println(" } forall /Encoding ISOLatin1Encoding D");
655 mPSStream.println(" currentdict end definefont");
656 mPSStream.println("} BD");
657 mPSStream.println("/NZ {dup 1 lt {pop 1} if} BD");
658 /* The following procedure takes args: string, x, y, desiredWidth.
659 * It calculates using stringwidth the width of the string in the
660 * current font and subtracts it from the desiredWidth and divides
661 * this by stringLen-1. This gives us a per-glyph adjustment in
662 * the spacing needed (either +ve or -ve) to make the string
663 * print at the desiredWidth. The ashow procedure call takes this
664 * per-glyph adjustment as an argument. This is necessary for WYSIWYG
665 */
666 mPSStream.println("/"+DrawStringName +" {");
667 mPSStream.println(" moveto 1 index stringwidth pop NZ sub");
668 mPSStream.println(" 1 index length 1 sub NZ div 0");
669 mPSStream.println(" 3 2 roll ashow newpath} BD");
670 mPSStream.println("/FL [");
671 if (mFontProps == null){
672 mPSStream.println(" /Helvetica ISOF");
673 mPSStream.println(" /Helvetica-Bold ISOF");
674 mPSStream.println(" /Helvetica-Oblique ISOF");
675 mPSStream.println(" /Helvetica-BoldOblique ISOF");
676 mPSStream.println(" /Times-Roman ISOF");
677 mPSStream.println(" /Times-Bold ISOF");
678 mPSStream.println(" /Times-Italic ISOF");
679 mPSStream.println(" /Times-BoldItalic ISOF");
680 mPSStream.println(" /Courier ISOF");
681 mPSStream.println(" /Courier-Bold ISOF");
682 mPSStream.println(" /Courier-Oblique ISOF");
683 mPSStream.println(" /Courier-BoldOblique ISOF");
684 } else {
685 int cnt = Integer.parseInt(mFontProps.getProperty("font.num", "9"));
686 for (int i = 0; i < cnt; i++){
687 mPSStream.println(" /" + mFontProps.getProperty
688 ("font." + String.valueOf(i), "Courier ISOF"));
689 }
690 }
691 mPSStream.println("] D");
692
693 mPSStream.println("/"+SetFontName +" {");
694 mPSStream.println(" FL exch get exch scalefont");
695 mPSStream.println(" [1 0 0 -1 0 0] makefont setfont} BD");
696
697 mPSStream.println("%%EndProlog");
698
699 mPSStream.println("%%BeginSetup");
700 if (epsPrinter == null) {
701 // Set Page Size using first page's format.
702 PageFormat pageFormat = getPageable().getPageFormat(0);
703 double paperHeight = pageFormat.getPaper().getHeight();
704 double paperWidth = pageFormat.getPaper().getWidth();
705
706 /* PostScript printers can always generate uncollated copies.
707 */
708 mPSStream.print("<< /PageSize [" +
709 paperWidth + " "+ paperHeight+"]");
710
711 final PrintService pservice = getPrintService();
712 Boolean isPS = java.security.AccessController.doPrivileged(
713 new java.security.PrivilegedAction<Boolean>() {
714 public Boolean run() {
715 try {
716 Class<?> psClass = Class.forName("sun.print.IPPPrintService");
717 if (psClass.isInstance(pservice)) {
718 Method isPSMethod = psClass.getMethod("isPostscript",
719 (Class[])null);
720 return (Boolean)isPSMethod.invoke(pservice, (Object[])null);
721 }
722 } catch (Throwable t) {
723 }
724 return Boolean.TRUE;
725 }
726 }
727 );
728 if (isPS) {
729 mPSStream.print(" /DeferredMediaSelection true");
730 }
731
732 mPSStream.print(" /ImagingBBox null /ManualFeed false");
733 mPSStream.print(isCollated() ? " /Collate true":"");
734 mPSStream.print(" /NumCopies " +getCopiesInt());
735
736 if (sidesAttr != Sides.ONE_SIDED) {
737 if (sidesAttr == Sides.TWO_SIDED_LONG_EDGE) {
738 mPSStream.print(" /Duplex true ");
739 } else if (sidesAttr == Sides.TWO_SIDED_SHORT_EDGE) {
740 mPSStream.print(" /Duplex true /Tumble true ");
741 }
742 }
743 mPSStream.println(" >> setpagedevice ");
744 }
745 mPSStream.println("%%EndSetup");
746 }
747
748 // Inner class to run "privileged" to open the printer output stream.
749
750 private class PrinterOpener implements java.security.PrivilegedAction<OutputStream> {
751 PrinterException pex;
752 OutputStream result;
753
754 public OutputStream run() {
755 try {
756
757 /* Write to a temporary file which will be spooled to
758 * the printer then deleted. In the case that the file
759 * is not removed for some reason, request that it is
760 * removed when the VM exits.
761 */
762 spoolFile = Files.createTempFile("javaprint", ".ps").toFile();
763 spoolFile.deleteOnExit();
764
765 result = new FileOutputStream(spoolFile);
766 return result;
767 } catch (IOException ex) {
768 // If there is an IOError we subvert it to a PrinterException.
769 pex = new PrinterIOException(ex);
770 }
771 return null;
772 }
773 }
774
775 // Inner class to run "privileged" to invoke the system print command
776
777 private class PrinterSpooler implements java.security.PrivilegedAction<Object> {
778 PrinterException pex;
779
780 private void handleProcessFailure(final Process failedProcess,
781 final String[] execCmd, final int result) throws IOException {
782 try (StringWriter sw = new StringWriter();
783 PrintWriter pw = new PrintWriter(sw)) {
784 pw.append("error=").append(Integer.toString(result));
785 pw.append(" running:");
786 for (String arg: execCmd) {
787 pw.append(" '").append(arg).append("'");
788 }
789 try (InputStream is = failedProcess.getErrorStream();
790 InputStreamReader isr = new InputStreamReader(is);
791 BufferedReader br = new BufferedReader(isr)) {
792 while (br.ready()) {
793 pw.println();
794 pw.append("\t\t").append(br.readLine());
795 }
796 } finally {
797 pw.flush();
798 }
799 throw new IOException(sw.toString());
800 }
801 }
802
803 public Object run() {
804 if (spoolFile == null || !spoolFile.exists()) {
805 pex = new PrinterException("No spool file");
806 return null;
807 }
808 try {
809 /**
810 * Spool to the printer.
811 */
812 String fileName = spoolFile.getAbsolutePath();
813 String execCmd[] = printExecCmd(mDestination, mOptions,
814 mNoJobSheet, getJobNameInt(),
815 1, fileName);
816
817 Process process = Runtime.getRuntime().exec(execCmd);
818 process.waitFor();
819 final int result = process.exitValue();
820 if (0 != result) {
821 handleProcessFailure(process, execCmd, result);
822 }
823 } catch (IOException ex) {
824 pex = new PrinterIOException(ex);
825 } catch (InterruptedException ie) {
826 pex = new PrinterException(ie.toString());
827 } finally {
828 spoolFile.delete();
829 }
830 return null;
831 }
832 }
833
834
835 /**
836 * Invoked if the application cancelled the printjob.
837 */
838 protected void abortDoc() {
839 if (mPSStream != null && mDestType != RasterPrinterJob.STREAM) {
840 mPSStream.close();
841 }
842 java.security.AccessController.doPrivileged(
843 new java.security.PrivilegedAction<Object>() {
844
845 public Object run() {
846 if (spoolFile != null && spoolFile.exists()) {
847 spoolFile.delete();
848 }
849 return null;
850 }
851 });
852 }
853
854 /**
855 * Invoked by the RasterPrintJob super class
856 * this method is called after that last page
857 * has been imaged.
858 */
859 protected void endDoc() throws PrinterException {
860 if (mPSStream != null) {
861 mPSStream.println(EOF_COMMENT);
862 mPSStream.flush();
863 if (mPSStream.checkError()) {
864 abortDoc();
865 throw new PrinterException("Error while writing to file");
866 }
867 if (mDestType != RasterPrinterJob.STREAM) {
868 mPSStream.close();
869 }
870 }
871 if (mDestType == RasterPrinterJob.PRINTER) {
872 PrintService pServ = getPrintService();
873 if (pServ != null) {
874 mDestination = pServ.getName();
875 if (isMac) {
876 PrintServiceAttributeSet psaSet = pServ.getAttributes();
877 if (psaSet != null) {
878 mDestination = psaSet.get(PrinterName.class).toString() ;
879 }
880 }
881 }
882 PrinterSpooler spooler = new PrinterSpooler();
883 java.security.AccessController.doPrivileged(spooler);
884 if (spooler.pex != null) {
885 throw spooler.pex;
886 }
887 }
888 }
889
890 private String getCoordPrep() {
891 return " 0 exch translate "
892 + "1 -1 scale"
893 + "[72 " + getXRes() + " div "
894 + "0 0 "
895 + "72 " + getYRes() + " div "
896 + "0 0]concat";
897 }
898
899 /**
900 * The RasterPrintJob super class calls this method
901 * at the start of each page.
902 */
903 protected void startPage(PageFormat pageFormat, Printable painter,
904 int index, boolean paperChanged)
905 throws PrinterException
906 {
907 double paperHeight = pageFormat.getPaper().getHeight();
908 double paperWidth = pageFormat.getPaper().getWidth();
909 int pageNumber = index + 1;
910
911 /* Place an initial gstate on to our gstate stack.
912 * It will have the default PostScript gstate
913 * attributes.
914 */
915 mGStateStack = new ArrayList<>();
916 mGStateStack.add(new GState());
917
918 mPSStream.println(PAGE_COMMENT + pageNumber + " " + pageNumber);
919
920 /* Check current page's pageFormat against the previous pageFormat,
921 */
922 if (index > 0 && paperChanged) {
923
924 mPSStream.print("<< /PageSize [" +
925 paperWidth + " " + paperHeight + "]");
926
927 final PrintService pservice = getPrintService();
928 Boolean isPS = java.security.AccessController.doPrivileged(
929 new java.security.PrivilegedAction<Boolean>() {
930 public Boolean run() {
931 try {
932 Class<?> psClass =
933 Class.forName("sun.print.IPPPrintService");
934 if (psClass.isInstance(pservice)) {
935 Method isPSMethod =
936 psClass.getMethod("isPostscript",
937 (Class[])null);
938 return (Boolean)
939 isPSMethod.invoke(pservice,
940 (Object[])null);
941 }
942 } catch (Throwable t) {
943 }
944 return Boolean.TRUE;
945 }
946 }
947 );
948
949 if (isPS) {
950 mPSStream.print(" /DeferredMediaSelection true");
951 }
952 mPSStream.println(" >> setpagedevice");
953 }
954 mPSStream.println(PAGE_SAVE);
955 mPSStream.println(paperHeight + getCoordPrep());
956 }
957
958 /**
959 * The RastePrintJob super class calls this method
960 * at the end of each page.
961 */
962 protected void endPage(PageFormat format, Printable painter,
963 int index)
964 throws PrinterException
965 {
966 mPSStream.println(PAGE_RESTORE);
967 mPSStream.println(SHOWPAGE);
968 }
969
970 /**
971 * Convert the 24 bit BGR image buffer represented by
972 * {@code image} to PostScript. The image is drawn at
973 * {@code (destX, destY)} in device coordinates.
974 * The image is scaled into a square of size
975 * specified by {@code destWidth} and
976 * {@code destHeight}. The portion of the
977 * source image copied into that square is specified
978 * by {@code srcX}, {@code srcY},
979 * {@code srcWidth}, and srcHeight.
980 */
981 protected void drawImageBGR(byte[] bgrData,
982 float destX, float destY,
983 float destWidth, float destHeight,
984 float srcX, float srcY,
985 float srcWidth, float srcHeight,
986 int srcBitMapWidth, int srcBitMapHeight) {
987
988 /* We draw images at device resolution so we probably need
989 * to change the current PostScript transform.
990 */
991 setTransform(new AffineTransform());
992 prepDrawing();
993
994 int intSrcWidth = (int) srcWidth;
995 int intSrcHeight = (int) srcHeight;
996
997 mPSStream.println(IMAGE_SAVE);
998
999 /* Create a PS string big enough to hold a row of pixels.
1000 */
1001 int psBytesPerRow = 3 * intSrcWidth;
1002 while (psBytesPerRow > MAX_PSSTR) {
1003 psBytesPerRow /= 2;
1004 }
1005
1006 mPSStream.println(psBytesPerRow + IMAGE_STR);
1007
1008 /* Scale and translate the unit image.
1009 */
1010 mPSStream.println("[" + destWidth + " 0 "
1011 + "0 " + destHeight
1012 + " " + destX + " " + destY
1013 +"]concat");
1014
1015 /* Color Image invocation.
1016 */
1017 mPSStream.println(intSrcWidth + " " + intSrcHeight + " " + 8 + "["
1018 + intSrcWidth + " 0 "
1019 + "0 " + intSrcHeight
1020 + " 0 " + 0 + "]"
1021 + "/imageSrc load false 3 colorimage");
1022
1023 /* Image data.
1024 */
1025 int index = 0;
1026 byte[] rgbData = new byte[intSrcWidth * 3];
1027
1028 try {
1029 /* Skip the parts of the image that are not part
1030 * of the source rectangle.
1031 */
1032 index = (int) srcY * srcBitMapWidth;
1033
1034 for(int i = 0; i < intSrcHeight; i++) {
1035
1036 /* Skip the left part of the image that is not
1037 * part of the source rectangle.
1038 */
1039 index += (int) srcX;
1040
1041 index = swapBGRtoRGB(bgrData, index, rgbData);
1042 byte[] encodedData = rlEncode(rgbData);
1043 byte[] asciiData = ascii85Encode(encodedData);
1044 mPSStream.write(asciiData);
1045 mPSStream.println("");
1046 }
1047
1048 /*
1049 * If there is an IOError we subvert it to a PrinterException.
1050 * Fix: There has got to be a better way, maybe define
1051 * a PrinterIOException and then throw that?
1052 */
1053 } catch (IOException e) {
1054 //throw new PrinterException(e.toString());
1055 }
1056
1057 mPSStream.println(IMAGE_RESTORE);
1058 }
1059
1060 /**
1061 * Prints the contents of the array of ints, 'data'
1062 * to the current page. The band is placed at the
1063 * location (x, y) in device coordinates on the
1064 * page. The width and height of the band is
1065 * specified by the caller. Currently the data
1066 * is 24 bits per pixel in BGR format.
1067 */
1068 protected void printBand(byte[] bgrData, int x, int y,
1069 int width, int height)
1070 throws PrinterException
1071 {
1072
1073 mPSStream.println(IMAGE_SAVE);
1074
1075 /* Create a PS string big enough to hold a row of pixels.
1076 */
1077 int psBytesPerRow = 3 * width;
1078 while (psBytesPerRow > MAX_PSSTR) {
1079 psBytesPerRow /= 2;
1080 }
1081
1082 mPSStream.println(psBytesPerRow + IMAGE_STR);
1083
1084 /* Scale and translate the unit image.
1085 */
1086 mPSStream.println("[" + width + " 0 "
1087 + "0 " + height
1088 + " " + x + " " + y
1089 +"]concat");
1090
1091 /* Color Image invocation.
1092 */
1093 mPSStream.println(width + " " + height + " " + 8 + "["
1094 + width + " 0 "
1095 + "0 " + -height
1096 + " 0 " + height + "]"
1097 + "/imageSrc load false 3 colorimage");
1098
1099 /* Image data.
1100 */
1101 int index = 0;
1102 byte[] rgbData = new byte[width*3];
1103
1104 try {
1105 for(int i = 0; i < height; i++) {
1106 index = swapBGRtoRGB(bgrData, index, rgbData);
1107 byte[] encodedData = rlEncode(rgbData);
1108 byte[] asciiData = ascii85Encode(encodedData);
1109 mPSStream.write(asciiData);
1110 mPSStream.println("");
1111 }
1112
1113 } catch (IOException e) {
1114 throw new PrinterIOException(e);
1115 }
1116
1117 mPSStream.println(IMAGE_RESTORE);
1118 }
1119
1120 /**
1121 * Examine the metrics captured by the
1122 * {@code PeekGraphics} instance and
1123 * if capable of directly converting this
1124 * print job to the printer's control language
1125 * or the native OS's graphics primitives, then
1126 * return a {@code PSPathGraphics} to perform
1127 * that conversion. If there is not an object
1128 * capable of the conversion then return
1129 * {@code null}. Returning {@code null}
1130 * causes the print job to be rasterized.
1131 */
1132
1133 protected Graphics2D createPathGraphics(PeekGraphics peekGraphics,
1134 PrinterJob printerJob,
1135 Printable painter,
1136 PageFormat pageFormat,
1137 int pageIndex) {
1138
1139 PSPathGraphics pathGraphics;
1140 PeekMetrics metrics = peekGraphics.getMetrics();
1141
1142 /* If the application has drawn anything that
1143 * out PathGraphics class can not handle then
1144 * return a null PathGraphics.
1145 */
1146 if (forcePDL == false && (forceRaster == true
1147 || metrics.hasNonSolidColors()
1148 || metrics.hasCompositing())) {
1149
1150 pathGraphics = null;
1151 } else {
1152
1153 BufferedImage bufferedImage = new BufferedImage(8, 8,
1154 BufferedImage.TYPE_INT_RGB);
1155 Graphics2D bufferedGraphics = bufferedImage.createGraphics();
1156 boolean canRedraw = peekGraphics.getAWTDrawingOnly() == false;
1157
1158 pathGraphics = new PSPathGraphics(bufferedGraphics, printerJob,
1159 painter, pageFormat, pageIndex,
1160 canRedraw);
1161 }
1162
1163 return pathGraphics;
1164 }
1165
1166 /**
1167 * Intersect the gstate's current path with the
1168 * current clip and make the result the new clip.
1169 */
1170 protected void selectClipPath() {
1171
1172 mPSStream.println(mClipOpStr);
1173 }
1174
1175 protected void setClip(Shape clip) {
1176
1177 mLastClip = clip;
1178 }
1179
1180 protected void setTransform(AffineTransform transform) {
1181 mLastTransform = transform;
1182 }
1183
1184 /**
1185 * Set the current PostScript font.
1186 * Taken from outFont in PSPrintStream.
1187 */
1188 protected boolean setFont(Font font) {
1189 mLastFont = font;
1190 return true;
1191 }
1192
1193 /**
1194 * Given an array of CharsetStrings that make up a run
1195 * of text, this routine converts each CharsetString to
1196 * an index into our PostScript font list. If one or more
1197 * CharsetStrings can not be represented by a PostScript
1198 * font, then this routine will return a null array.
1199 */
1200 private int[] getPSFontIndexArray(Font font, CharsetString[] charSet) {
1201 int[] psFont = null;
1202
1203 if (mFontProps != null) {
1204 psFont = new int[charSet.length];
1205 }
1206
1207 for (int i = 0; i < charSet.length && psFont != null; i++){
1208
1209 /* Get the encoding of the run of text.
1210 */
1211 CharsetString cs = charSet[i];
1212
1213 CharsetEncoder fontCS = cs.fontDescriptor.encoder;
1214 String charsetName = cs.fontDescriptor.getFontCharsetName();
1215 /*
1216 * sun.awt.Symbol perhaps should return "symbol" for encoding.
1217 * Similarly X11Dingbats should return "dingbats"
1218 * Forced to check for win32 & x/unix names for these converters.
1219 */
1220
1221 if ("Symbol".equals(charsetName)) {
1222 charsetName = "symbol";
1223 } else if ("WingDings".equals(charsetName) ||
1224 "X11Dingbats".equals(charsetName)) {
1225 charsetName = "dingbats";
1226 } else {
1227 charsetName = makeCharsetName(charsetName, cs.charsetChars);
1228 }
1229
1230 int styleMask = font.getStyle() |
1231 FontUtilities.getFont2D(font).getStyle();
1232
1233 String style = FontConfiguration.getStyleString(styleMask);
1234
1235 /* First we map the font name through the properties file.
1236 * This mapping provides alias names for fonts, for example,
1237 * "timesroman" is mapped to "serif".
1238 */
1239 String fontName = font.getFamily().toLowerCase(Locale.ENGLISH);
1240 fontName = fontName.replace(' ', '_');
1241 String name = mFontProps.getProperty(fontName, "");
1242
1243 /* Now map the alias name, character set name, and style
1244 * to a PostScript name.
1245 */
1246 String psName =
1247 mFontProps.getProperty(name + "." + charsetName + "." + style,
1248 null);
1249
1250 if (psName != null) {
1251
1252 /* Get the PostScript font index for the PostScript font.
1253 */
1254 try {
1255 psFont[i] =
1256 Integer.parseInt(mFontProps.getProperty(psName));
1257
1258 /* If there is no PostScript font for this font name,
1259 * then we want to termintate the loop and the method
1260 * indicating our failure. Setting the array to null
1261 * is used to indicate these failures.
1262 */
1263 } catch(NumberFormatException e){
1264 psFont = null;
1265 }
1266
1267 /* There was no PostScript name for the font, character set,
1268 * and style so give up.
1269 */
1270 } else {
1271 psFont = null;
1272 }
1273 }
1274
1275 return psFont;
1276 }
1277
1278
1279 private static String escapeParens(String str) {
1280 if (str.indexOf('(') == -1 && str.indexOf(')') == -1 ) {
1281 return str;
1282 } else {
1283 int count = 0;
1284 int pos = 0;
1285 while ((pos = str.indexOf('(', pos)) != -1) {
1286 count++;
1287 pos++;
1288 }
1289 pos = 0;
1290 while ((pos = str.indexOf(')', pos)) != -1) {
1291 count++;
1292 pos++;
1293 }
1294 char []inArr = str.toCharArray();
1295 char []outArr = new char[inArr.length+count];
1296 pos = 0;
1297 for (int i=0;i<inArr.length;i++) {
1298 if (inArr[i] == '(' || inArr[i] == ')') {
1299 outArr[pos++] = '\\';
1300 }
1301 outArr[pos++] = inArr[i];
1302 }
1303 return new String(outArr);
1304
1305 }
1306 }
1307
1308 /* return of 0 means unsupported. Other return indicates the number
1309 * of distinct PS fonts needed to draw this text. This saves us
1310 * doing this processing one extra time.
1311 */
1312 protected int platformFontCount(Font font, String str) {
1313 if (mFontProps == null) {
1314 return 0;
1315 }
1316 PlatformFont peer = (PlatformFont) FontAccess.getFontAccess()
1317 .getFontPeer(font);
1318 CharsetString[] acs = peer.makeMultiCharsetString(str, false);
1319 if (acs == null) {
1320 /* AWT can't convert all chars so use 2D path */
1321 return 0;
1322 }
1323 int[] psFonts = getPSFontIndexArray(font, acs);
1324 return (psFonts == null) ? 0 : psFonts.length;
1325 }
1326
1327 protected boolean textOut(Graphics g, String str, float x, float y,
1328 Font mLastFont, FontRenderContext frc,
1329 float width) {
1330 boolean didText = true;
1331
1332 if (mFontProps == null) {
1333 return false;
1334 } else {
1335 prepDrawing();
1336
1337 /* On-screen drawString renders most control chars as the missing
1338 * glyph and have the non-zero advance of that glyph.
1339 * Exceptions are \t, \n and \r which are considered zero-width.
1340 * Postscript handles control chars mostly as a missing glyph.
1341 * But we use 'ashow' specifying a width for the string which
1342 * assumes zero-width for those three exceptions, and Postscript
1343 * tries to squeeze the extra char in, with the result that the
1344 * glyphs look compressed or even overlap.
1345 * So exclude those control chars from the string sent to PS.
1346 */
1347 str = removeControlChars(str);
1348 if (str.length() == 0) {
1349 return true;
1350 }
1351 PlatformFont peer = (PlatformFont) FontAccess.getFontAccess()
1352 .getFontPeer(mLastFont);
1353 CharsetString[] acs = peer.makeMultiCharsetString(str, false);
1354 if (acs == null) {
1355 /* AWT can't convert all chars so use 2D path */
1356 return false;
1357 }
1358 /* Get an array of indices into our PostScript name
1359 * table. If all of the runs can not be converted
1360 * to PostScript fonts then null is returned and
1361 * we'll want to fall back to printing the text
1362 * as shapes.
1363 */
1364 int[] psFonts = getPSFontIndexArray(mLastFont, acs);
1365 if (psFonts != null) {
1366
1367 for (int i = 0; i < acs.length; i++){
1368 CharsetString cs = acs[i];
1369 CharsetEncoder fontCS = cs.fontDescriptor.encoder;
1370
1371 StringBuilder nativeStr = new StringBuilder();
1372 byte[] strSeg = new byte[cs.length * 2];
1373 int len = 0;
1374 try {
1375 ByteBuffer bb = ByteBuffer.wrap(strSeg);
1376 fontCS.encode(CharBuffer.wrap(cs.charsetChars,
1377 cs.offset,
1378 cs.length),
1379 bb, true);
1380 bb.flip();
1381 len = bb.limit();
1382 } catch(IllegalStateException xx){
1383 continue;
1384 } catch(CoderMalfunctionError xx){
1385 continue;
1386 }
1387 /* The width to fit to may either be specified,
1388 * or calculated. Specifying by the caller is only
1389 * valid if the text does not need to be decomposed
1390 * into multiple calls.
1391 */
1392 float desiredWidth;
1393 if (acs.length == 1 && width != 0f) {
1394 desiredWidth = width;
1395 } else {
1396 Rectangle2D r2d =
1397 mLastFont.getStringBounds(cs.charsetChars,
1398 cs.offset,
1399 cs.offset+cs.length,
1400 frc);
1401 desiredWidth = (float)r2d.getWidth();
1402 }
1403 /* unprintable chars had width of 0, causing a PS error
1404 */
1405 if (desiredWidth == 0) {
1406 return didText;
1407 }
1408 nativeStr.append('<');
1409 for (int j = 0; j < len; j++){
1410 byte b = strSeg[j];
1411 // to avoid encoding conversion with println()
1412 String hexS = Integer.toHexString(b);
1413 int length = hexS.length();
1414 if (length > 2) {
1415 hexS = hexS.substring(length - 2, length);
1416 } else if (length == 1) {
1417 hexS = "0" + hexS;
1418 } else if (length == 0) {
1419 hexS = "00";
1420 }
1421 nativeStr.append(hexS);
1422 }
1423 nativeStr.append('>');
1424 /* This comment costs too much in output file size */
1425 // mPSStream.println("% Font[" + mLastFont.getName() + ", " +
1426 // FontConfiguration.getStyleString(mLastFont.getStyle()) + ", "
1427 // + mLastFont.getSize2D() + "]");
1428 getGState().emitPSFont(psFonts[i], mLastFont.getSize2D());
1429
1430 // out String
1431 mPSStream.println(nativeStr.toString() + " " +
1432 desiredWidth + " " + x + " " + y + " " +
1433 DrawStringName);
1434 x += desiredWidth;
1435 }
1436 } else {
1437 didText = false;
1438 }
1439 }
1440
1441 return didText;
1442 }
1443 /**
1444 * Set the current path rule to be either
1445 * {@code FILL_EVEN_ODD} (using the
1446 * even-odd file rule) or {@code FILL_WINDING}
1447 * (using the non-zero winding rule.)
1448 */
1449 protected void setFillMode(int fillRule) {
1450
1451 switch (fillRule) {
1452
1453 case FILL_EVEN_ODD:
1454 mFillOpStr = EVEN_ODD_FILL_STR;
1455 mClipOpStr = EVEN_ODD_CLIP_STR;
1456 break;
1457
1458 case FILL_WINDING:
1459 mFillOpStr = WINDING_FILL_STR;
1460 mClipOpStr = WINDING_CLIP_STR;
1461 break;
1462
1463 default:
1464 throw new IllegalArgumentException();
1465 }
1466
1467 }
1468
1469 /**
1470 * Set the printer's current color to be that
1471 * defined by {@code color}
1472 */
1473 protected void setColor(Color color) {
1474 mLastColor = color;
1475 }
1476
1477 /**
1478 * Fill the current path using the current fill mode
1479 * and color.
1480 */
1481 protected void fillPath() {
1482
1483 mPSStream.println(mFillOpStr);
1484 }
1485
1486 /**
1487 * Called to mark the start of a new path.
1488 */
1489 protected void beginPath() {
1490
1491 prepDrawing();
1492 mPSStream.println(NEWPATH_STR);
1493
1494 mPenX = 0;
1495 mPenY = 0;
1496 }
1497
1498 /**
1499 * Close the current subpath by appending a straight
1500 * line from the current point to the subpath's
1501 * starting point.
1502 */
1503 protected void closeSubpath() {
1504
1505 mPSStream.println(CLOSEPATH_STR);
1506
1507 mPenX = mStartPathX;
1508 mPenY = mStartPathY;
1509 }
1510
1511
1512 /**
1513 * Generate PostScript to move the current pen
1514 * position to {@code (x, y)}.
1515 */
1516 protected void moveTo(float x, float y) {
1517
1518 mPSStream.println(trunc(x) + " " + trunc(y) + MOVETO_STR);
1519
1520 /* moveto marks the start of a new subpath
1521 * and we need to remember that starting
1522 * position so that we know where the
1523 * pen returns to with a close path.
1524 */
1525 mStartPathX = x;
1526 mStartPathY = y;
1527
1528 mPenX = x;
1529 mPenY = y;
1530 }
1531 /**
1532 * Generate PostScript to draw a line from the
1533 * current pen position to {@code (x, y)}.
1534 */
1535 protected void lineTo(float x, float y) {
1536
1537 mPSStream.println(trunc(x) + " " + trunc(y) + LINETO_STR);
1538
1539 mPenX = x;
1540 mPenY = y;
1541 }
1542
1543 /**
1544 * Add to the current path a bezier curve formed
1545 * by the current pen position and the method parameters
1546 * which are two control points and an ending
1547 * point.
1548 */
1549 protected void bezierTo(float control1x, float control1y,
1550 float control2x, float control2y,
1551 float endX, float endY) {
1552
1553 // mPSStream.println(control1x + " " + control1y
1554 // + " " + control2x + " " + control2y
1555 // + " " + endX + " " + endY
1556 // + CURVETO_STR);
1557 mPSStream.println(trunc(control1x) + " " + trunc(control1y)
1558 + " " + trunc(control2x) + " " + trunc(control2y)
1559 + " " + trunc(endX) + " " + trunc(endY)
1560 + CURVETO_STR);
1561
1562
1563 mPenX = endX;
1564 mPenY = endY;
1565 }
1566
1567 String trunc(float f) {
1568 float af = Math.abs(f);
1569 if (af >= 1f && af <=1000f) {
1570 f = Math.round(f*1000)/1000f;
1571 }
1572 return Float.toString(f);
1573 }
1574
1575 /**
1576 * Return the x coordinate of the pen in the
1577 * current path.
1578 */
1579 protected float getPenX() {
1580
1581 return mPenX;
1582 }
1583 /**
1584 * Return the y coordinate of the pen in the
1585 * current path.
1586 */
1587 protected float getPenY() {
1588
1589 return mPenY;
1590 }
1591
1592 /**
1593 * Return the x resolution of the coordinates
1594 * to be rendered.
1595 */
1596 protected double getXRes() {
1597 return xres;
1598 }
1599 /**
1600 * Return the y resolution of the coordinates
1601 * to be rendered.
1602 */
1603 protected double getYRes() {
1604 return yres;
1605 }
1606
1607 /**
1608 * Set the resolution at which to print.
1609 */
1610 protected void setXYRes(double x, double y) {
1611 xres = x;
1612 yres = y;
1613 }
1614
1615 /**
1616 * For PostScript the origin is in the upper-left of the
1617 * paper not at the imageable area corner.
1618 */
1619 protected double getPhysicalPrintableX(Paper p) {
1620 return 0;
1621
1622 }
1623
1624 /**
1625 * For PostScript the origin is in the upper-left of the
1626 * paper not at the imageable area corner.
1627 */
1628 protected double getPhysicalPrintableY(Paper p) {
1629 return 0;
1630 }
1631
1632 protected double getPhysicalPrintableWidth(Paper p) {
1633 return p.getImageableWidth();
1634 }
1635
1636 protected double getPhysicalPrintableHeight(Paper p) {
1637 return p.getImageableHeight();
1638 }
1639
1640 protected double getPhysicalPageWidth(Paper p) {
1641 return p.getWidth();
1642 }
1643
1644 protected double getPhysicalPageHeight(Paper p) {
1645 return p.getHeight();
1646 }
1647
1648 /**
1649 * Returns how many times each page in the book
1650 * should be consecutively printed by PrintJob.
1651 * If the printer makes copies itself then this
1652 * method should return 1.
1653 */
1654 protected int getNoncollatedCopies() {
1655 return 1;
1656 }
1657
1658 protected int getCollatedCopies() {
1659 return 1;
1660 }
1661
1662 private String[] printExecCmd(String printer, String options,
1663 boolean noJobSheet,
1664 String jobTitle, int copies, String spoolFile) {
1665 int PRINTER = 0x1;
1666 int OPTIONS = 0x2;
1667 int JOBTITLE = 0x4;
1668 int COPIES = 0x8;
1669 int NOSHEET = 0x10;
1670 int pFlags = 0;
1671 String execCmd[];
1672 int ncomps = 2; // minimum number of print args
1673 int n = 0;
1674
1675 if (printer != null && !printer.equals("") && !printer.equals("lp")) {
1676 pFlags |= PRINTER;
1677 ncomps+=1;
1678 }
1679 if (options != null && !options.equals("")) {
1680 pFlags |= OPTIONS;
1681 ncomps+=1;
1682 }
1683 if (jobTitle != null && !jobTitle.equals("")) {
1684 pFlags |= JOBTITLE;
1685 ncomps+=1;
1686 }
1687 if (copies > 1) {
1688 pFlags |= COPIES;
1689 ncomps+=1;
1690 }
1691 if (noJobSheet) {
1692 pFlags |= NOSHEET;
1693 ncomps+=1;
1694 } else if (getPrintService().
1695 isAttributeCategorySupported(JobSheets.class)) {
1696 ncomps+=1; // for jobsheet
1697 }
1698
1699 String osname = System.getProperty("os.name");
1700 if (osname.equals("Linux") || osname.contains("OS X")) {
1701 execCmd = new String[ncomps];
1702 execCmd[n++] = "/usr/bin/lpr";
1703 if ((pFlags & PRINTER) != 0) {
1704 execCmd[n++] = "-P" + printer;
1705 }
1706 if ((pFlags & JOBTITLE) != 0) {
1707 execCmd[n++] = "-J" + jobTitle;
1708 }
1709 if ((pFlags & COPIES) != 0) {
1710 execCmd[n++] = "-#" + copies;
1711 }
1712 if ((pFlags & NOSHEET) != 0) {
1713 execCmd[n++] = "-h";
1714 } else if (getPrintService().
1715 isAttributeCategorySupported(JobSheets.class)) {
1716 execCmd[n++] = "-o job-sheets=standard";
1717 }
1718 if ((pFlags & OPTIONS) != 0) {
1719 execCmd[n++] = new String(options);
1720 }
1721 } else {
1722 ncomps+=1; //add 1 arg for lp
1723 execCmd = new String[ncomps];
1724 execCmd[n++] = "/usr/bin/lp";
1725 execCmd[n++] = "-c"; // make a copy of the spool file
1726 if ((pFlags & PRINTER) != 0) {
1727 execCmd[n++] = "-d" + printer;
1728 }
1729 if ((pFlags & JOBTITLE) != 0) {
1730 execCmd[n++] = "-t" + jobTitle;
1731 }
1732 if ((pFlags & COPIES) != 0) {
1733 execCmd[n++] = "-n" + copies;
1734 }
1735 if ((pFlags & NOSHEET) != 0) {
1736 execCmd[n++] = "-o nobanner";
1737 } else if (getPrintService().
1738 isAttributeCategorySupported(JobSheets.class)) {
1739 execCmd[n++] = "-o job-sheets=standard";
1740 }
1741 if ((pFlags & OPTIONS) != 0) {
1742 execCmd[n++] = "-o" + options;
1743 }
1744 }
1745 execCmd[n++] = spoolFile;
1746 return execCmd;
1747 }
1748
1749 private static int swapBGRtoRGB(byte[] image, int index, byte[] dest) {
1750 int destIndex = 0;
1751 while(index < image.length-2 && destIndex < dest.length-2) {
1752 dest[destIndex++] = image[index+2];
1753 dest[destIndex++] = image[index+1];
1754 dest[destIndex++] = image[index+0];
1755 index+=3;
1756 }
1757 return index;
1758 }
1759
1760 /*
1761 * Currently CharToByteConverter.getCharacterEncoding() return values are
1762 * not fixed yet. These are used as the part of the key of
1763 * psfont.properties. When those name are fixed this routine can
1764 * be erased.
1765 */
1766 private String makeCharsetName(String name, char[] chs) {
1767 if (name.equals("Cp1252") || name.equals("ISO8859_1")) {
1768 return "latin1";
1769 } else if (name.equals("UTF8")) {
1770 // same as latin 1 if all chars < 256
1771 for (int i=0; i < chs.length; i++) {
1772 if (chs[i] > 255) {
1773 return name.toLowerCase();
1774 }
1775 }
1776 return "latin1";
1777 } else if (name.startsWith("ISO8859")) {
1778 // same as latin 1 if all chars < 128
1779 for (int i=0; i < chs.length; i++) {
1780 if (chs[i] > 127) {
1781 return name.toLowerCase();
1782 }
1783 }
1784 return "latin1";
1785 } else {
1786 return name.toLowerCase();
1787 }
1788 }
1789
1790 private void prepDrawing() {
1791
1792 /* Pop gstates until we can set the needed clip
1793 * and transform or until we are at the outer most
1794 * gstate.
1795 */
1796 while (isOuterGState() == false
1797 && (getGState().canSetClip(mLastClip) == false
1798 || getGState().mTransform.equals(mLastTransform) == false)) {
1799
1800
1801 grestore();
1802 }
1803
1804 /* Set the color. This can push the color to the
1805 * outer most gsave which is often a good thing.
1806 */
1807 getGState().emitPSColor(mLastColor);
1808
1809 /* We do not want to change the outermost
1810 * transform or clip so if we are at the
1811 * outer clip the generate a gsave.
1812 */
1813 if (isOuterGState()) {
1814 gsave();
1815 getGState().emitTransform(mLastTransform);
1816 getGState().emitPSClip(mLastClip);
1817 }
1818
1819 /* Set the font if we have been asked to. It is
1820 * important that the font is set after the
1821 * transform in order to get the font size
1822 * correct.
1823 */
1824 // if (g != null) {
1825 // getGState().emitPSFont(g, mLastFont);
1826 // }
1827
1828 }
1829
1830 /**
1831 * Return the GState that is currently on top
1832 * of the GState stack. There should always be
1833 * a GState on top of the stack. If there isn't
1834 * then this method will throw an IndexOutOfBounds
1835 * exception.
1836 */
1837 private GState getGState() {
1838 int count = mGStateStack.size();
1839 return mGStateStack.get(count - 1);
1840 }
1841
1842 /**
1843 * Emit a PostScript gsave command and add a
1844 * new GState on to our stack which represents
1845 * the printer's gstate stack.
1846 */
1847 private void gsave() {
1848 GState oldGState = getGState();
1849 mGStateStack.add(new GState(oldGState));
1850 mPSStream.println(GSAVE_STR);
1851 }
1852
1853 /**
1854 * Emit a PostScript grestore command and remove
1855 * a GState from our stack which represents the
1856 * printer's gstate stack.
1857 */
1858 private void grestore() {
1859 int count = mGStateStack.size();
1860 mGStateStack.remove(count - 1);
1861 mPSStream.println(GRESTORE_STR);
1862 }
1863
1864 /**
1865 * Return true if the current GState is the
1866 * outermost GState and therefore should not
1867 * be restored.
1868 */
1869 private boolean isOuterGState() {
1870 return mGStateStack.size() == 1;
1871 }
1872
1873 /**
1874 * A stack of GStates is maintained to model the printer's
1875 * gstate stack. Each GState holds information about
1876 * the current graphics attributes.
1877 */
1878 private class GState{
1879 Color mColor;
1880 Shape mClip;
1881 Font mFont;
1882 AffineTransform mTransform;
1883
1884 GState() {
1885 mColor = Color.black;
1886 mClip = null;
1887 mFont = null;
1888 mTransform = new AffineTransform();
1889 }
1890
1891 GState(GState copyGState) {
1892 mColor = copyGState.mColor;
1893 mClip = copyGState.mClip;
1894 mFont = copyGState.mFont;
1895 mTransform = copyGState.mTransform;
1896 }
1897
1898 boolean canSetClip(Shape clip) {
1899
1900 return mClip == null || mClip.equals(clip);
1901 }
1902
1903
1904 void emitPSClip(Shape clip) {
1905 if (clip != null
1906 && (mClip == null || mClip.equals(clip) == false)) {
1907 String saveFillOp = mFillOpStr;
1908 String saveClipOp = mClipOpStr;
1909 convertToPSPath(clip.getPathIterator(new AffineTransform()));
1910 selectClipPath();
1911 mClip = clip;
1912 /* The clip is a shape and has reset the winding rule state */
1913 mClipOpStr = saveFillOp;
1914 mFillOpStr = saveFillOp;
1915 }
1916 }
1917
1918 void emitTransform(AffineTransform transform) {
1919
1920 if (transform != null && transform.equals(mTransform) == false) {
1921 double[] matrix = new double[6];
1922 transform.getMatrix(matrix);
1923 mPSStream.println("[" + (float)matrix[0]
1924 + " " + (float)matrix[1]
1925 + " " + (float)matrix[2]
1926 + " " + (float)matrix[3]
1927 + " " + (float)matrix[4]
1928 + " " + (float)matrix[5]
1929 + "] concat");
1930
1931 mTransform = transform;
1932 }
1933 }
1934
1935 void emitPSColor(Color color) {
1936 if (color != null && color.equals(mColor) == false) {
1937 float[] rgb = color.getRGBColorComponents(null);
1938
1939 /* If the color is a gray value then use
1940 * setgray.
1941 */
1942 if (rgb[0] == rgb[1] && rgb[1] == rgb[2]) {
1943 mPSStream.println(rgb[0] + SETGRAY_STR);
1944
1945 /* It's not gray so use setrgbcolor.
1946 */
1947 } else {
1948 mPSStream.println(rgb[0] + " "
1949 + rgb[1] + " "
1950 + rgb[2] + " "
1951 + SETRGBCOLOR_STR);
1952 }
1953
1954 mColor = color;
1955
1956 }
1957 }
1958
1959 void emitPSFont(int psFontIndex, float fontSize) {
1960 mPSStream.println(fontSize + " " +
1961 psFontIndex + " " + SetFontName);
1962 }
1963 }
1964
1965 /**
1966 * Given a Java2D {@code PathIterator} instance,
1967 * this method translates that into a PostScript path..
1968 */
1969 void convertToPSPath(PathIterator pathIter) {
1970
1971 float[] segment = new float[6];
1972 int segmentType;
1973
1974 /* Map the PathIterator's fill rule into the PostScript
1975 * fill rule.
1976 */
1977 int fillRule;
1978 if (pathIter.getWindingRule() == PathIterator.WIND_EVEN_ODD) {
1979 fillRule = FILL_EVEN_ODD;
1980 } else {
1981 fillRule = FILL_WINDING;
1982 }
1983
1984 beginPath();
1985
1986 setFillMode(fillRule);
1987
1988 while (pathIter.isDone() == false) {
1989 segmentType = pathIter.currentSegment(segment);
1990
1991 switch (segmentType) {
1992 case PathIterator.SEG_MOVETO:
1993 moveTo(segment[0], segment[1]);
1994 break;
1995
1996 case PathIterator.SEG_LINETO:
1997 lineTo(segment[0], segment[1]);
1998 break;
1999
2000 /* Convert the quad path to a bezier.
2001 */
2002 case PathIterator.SEG_QUADTO:
2003 float lastX = getPenX();
2004 float lastY = getPenY();
2005 float c1x = lastX + (segment[0] - lastX) * 2 / 3;
2006 float c1y = lastY + (segment[1] - lastY) * 2 / 3;
2007 float c2x = segment[2] - (segment[2] - segment[0]) * 2/ 3;
2008 float c2y = segment[3] - (segment[3] - segment[1]) * 2/ 3;
2009 bezierTo(c1x, c1y,
2010 c2x, c2y,
2011 segment[2], segment[3]);
2012 break;
2013
2014 case PathIterator.SEG_CUBICTO:
2015 bezierTo(segment[0], segment[1],
2016 segment[2], segment[3],
2017 segment[4], segment[5]);
2018 break;
2019
2020 case PathIterator.SEG_CLOSE:
2021 closeSubpath();
2022 break;
2023 }
2024
2025
2026 pathIter.next();
2027 }
2028 }
2029
2030 /*
2031 * Fill the path defined by {@code pathIter}
2032 * with the specified color.
2033 * The path is provided in current user space.
2034 */
2035 protected void deviceFill(PathIterator pathIter, Color color,
2036 AffineTransform tx, Shape clip) {
2037
2038 if (Double.isNaN(tx.getScaleX()) ||
2039 Double.isNaN(tx.getScaleY()) ||
2040 Double.isNaN(tx.getShearX()) ||
2041 Double.isNaN(tx.getShearY()) ||
2042 Double.isNaN(tx.getTranslateX()) ||
2043 Double.isNaN(tx.getTranslateY())) {
2044 return;
2045 }
2046 setTransform(tx);
2047 setClip(clip);
2048 setColor(color);
2049 convertToPSPath(pathIter);
2050 /* Specify the path to fill as the clip, this ensures that only
2051 * pixels which are inside the path will be filled, which is
2052 * what the Java 2D APIs specify
2053 */
2054 mPSStream.println(GSAVE_STR);
2055 selectClipPath();
2056 fillPath();
2057 mPSStream.println(GRESTORE_STR + " " + NEWPATH_STR);
2058 }
2059
2060 /*
2061 * Run length encode byte array in a form suitable for decoding
2062 * by the PS Level 2 filter RunLengthDecode.
2063 * Array data to encode is inArr. Encoded data is written to outArr
2064 * outArr must be long enough to hold the encoded data but this
2065 * can't be known ahead of time.
2066 * A safe assumption is to use double the length of the input array.
2067 * This is then copied into a new array of the correct length which
2068 * is returned.
2069 * Algorithm:
2070 * Encoding is a lead byte followed by data bytes.
2071 * Lead byte of 0->127 indicates leadByte + 1 distinct bytes follow
2072 * Lead byte of 129->255 indicates 257 - leadByte is the number of times
2073 * the following byte is repeated in the source.
2074 * 128 is a special lead byte indicating end of data (EOD) and is
2075 * written as the final byte of the returned encoded data.
2076 */
2077 private byte[] rlEncode(byte[] inArr) {
2078
2079 int inIndex = 0;
2080 int outIndex = 0;
2081 int startIndex = 0;
2082 int runLen = 0;
2083 byte[] outArr = new byte[(inArr.length * 2) +2];
2084 while (inIndex < inArr.length) {
2085 if (runLen == 0) {
2086 startIndex = inIndex++;
2087 runLen=1;
2088 }
2089
2090 while (runLen < 128 && inIndex < inArr.length &&
2091 inArr[inIndex] == inArr[startIndex]) {
2092 runLen++; // count run of same value
2093 inIndex++;
2094 }
2095
2096 if (runLen > 1) {
2097 outArr[outIndex++] = (byte)(257 - runLen);
2098 outArr[outIndex++] = inArr[startIndex];
2099 runLen = 0;
2100 continue; // back to top of while loop.
2101 }
2102
2103 // if reach here have a run of different values, or at the end.
2104 while (runLen < 128 && inIndex < inArr.length &&
2105 inArr[inIndex] != inArr[inIndex-1]) {
2106 runLen++; // count run of different values
2107 inIndex++;
2108 }
2109 outArr[outIndex++] = (byte)(runLen - 1);
2110 for (int i = startIndex; i < startIndex+runLen; i++) {
2111 outArr[outIndex++] = inArr[i];
2112 }
2113 runLen = 0;
2114 }
2115 outArr[outIndex++] = (byte)128;
2116 byte[] encodedData = new byte[outIndex];
2117 System.arraycopy(outArr, 0, encodedData, 0, outIndex);
2118
2119 return encodedData;
2120 }
2121
2122 /* written acc. to Adobe Spec. "Filtered Files: ASCIIEncode Filter",
2123 * "PS Language Reference Manual, 2nd edition: Section 3.13"
2124 */
2125 private byte[] ascii85Encode(byte[] inArr) {
2126 byte[] outArr = new byte[((inArr.length+4) * 5 / 4) + 2];
2127 long p1 = 85;
2128 long p2 = p1*p1;
2129 long p3 = p1*p2;
2130 long p4 = p1*p3;
2131 byte pling = '!';
2132
2133 int i = 0;
2134 int olen = 0;
2135 long val, rem;
2136
2137 while (i+3 < inArr.length) {
2138 val = ((long)((inArr[i++]&0xff))<<24) +
2139 ((long)((inArr[i++]&0xff))<<16) +
2140 ((long)((inArr[i++]&0xff))<< 8) +
2141 ((long)(inArr[i++]&0xff));
2142 if (val == 0) {
2143 outArr[olen++] = 'z';
2144 } else {
2145 rem = val;
2146 outArr[olen++] = (byte)(rem / p4 + pling); rem = rem % p4;
2147 outArr[olen++] = (byte)(rem / p3 + pling); rem = rem % p3;
2148 outArr[olen++] = (byte)(rem / p2 + pling); rem = rem % p2;
2149 outArr[olen++] = (byte)(rem / p1 + pling); rem = rem % p1;
2150 outArr[olen++] = (byte)(rem + pling);
2151 }
2152 }
2153 // input not a multiple of 4 bytes, write partial output.
2154 if (i < inArr.length) {
2155 int n = inArr.length - i; // n bytes remain to be written
2156
2157 val = 0;
2158 while (i < inArr.length) {
2159 val = (val << 8) + (inArr[i++]&0xff);
2160 }
2161
2162 int append = 4 - n;
2163 while (append-- > 0) {
2164 val = val << 8;
2165 }
2166 byte []c = new byte[5];
2167 rem = val;
2168 c[0] = (byte)(rem / p4 + pling); rem = rem % p4;
2169 c[1] = (byte)(rem / p3 + pling); rem = rem % p3;
2170 c[2] = (byte)(rem / p2 + pling); rem = rem % p2;
2171 c[3] = (byte)(rem / p1 + pling); rem = rem % p1;
2172 c[4] = (byte)(rem + pling);
2173
2174 for (int b = 0; b < n+1 ; b++) {
2175 outArr[olen++] = c[b];
2176 }
2177 }
2178
2179 // write EOD marker.
2180 outArr[olen++]='~'; outArr[olen++]='>';
2181
2182 /* The original intention was to insert a newline after every 78 bytes.
2183 * This was mainly intended for legibility but I decided against this
2184 * partially because of the (small) amount of extra space, and
2185 * partially because for line breaks either would have to hardwire
2186 * ascii 10 (newline) or calculate space in bytes to allocate for
2187 * the platform's newline byte sequence. Also need to be careful
2188 * about where its inserted:
2189 * Ascii 85 decoder ignores white space except for one special case:
2190 * you must ensure you do not split the EOD marker across lines.
2191 */
2192 byte[] retArr = new byte[olen];
2193 System.arraycopy(outArr, 0, retArr, 0, olen);
2194 return retArr;
2195
2196 }
2197
2198 /**
2199 * PluginPrinter generates EPSF wrapped with a header and trailer
2200 * comment. This conforms to the new requirements of Mozilla 1.7
2201 * and FireFox 1.5 and later. Earlier versions of these browsers
2202 * did not support plugin printing in the general sense (not just Java).
2203 * A notable limitation of these browsers is that they handle plugins
2204 * which would span page boundaries by scaling plugin content to fit on a
2205 * single page. This means white space is left at the bottom of the
2206 * previous page and its impossible to print these cases as they appear on
2207 * the web page. This is contrast to how the same browsers behave on
2208 * Windows where it renders as on-screen.
2209 * Cases where the content fits on a single page do work fine, and they
2210 * are the majority of cases.
2211 * The scaling that the browser specifies to make the plugin content fit
2212 * when it is larger than a single page can hold is non-uniform. It
2213 * scales the axis in which the content is too large just enough to
2214 * ensure it fits. For content which is extremely long this could lead
2215 * to noticeable distortion. However that is probably rare enough that
2216 * its not worth compensating for that here, but we can revisit that if
2217 * needed, and compensate by making the scale for the other axis the
2218 * same.
2219 */
2220 public static class PluginPrinter implements Printable {
2221
2222 private EPSPrinter epsPrinter;
2223 private Component applet;
2224 private PrintStream stream;
2225 private String epsTitle;
2226 private int bx, by, bw, bh;
2227 private int width, height;
2228
2229 /**
2230 * This is called from the Java Plug-in to print an Applet's
2231 * contents as EPS to a postscript stream provided by the browser.
2232 * @param applet the applet component to print.
2233 * @param stream the print stream provided by the plug-in
2234 * @param x the x location of the applet panel in the browser window
2235 * @param y the y location of the applet panel in the browser window
2236 * @param w the width of the applet panel in the browser window
2237 * @param h the width of the applet panel in the browser window
2238 */
2239 @SuppressWarnings("deprecation")
2240 public PluginPrinter(Component applet,
2241 PrintStream stream,
2242 int x, int y, int w, int h) {
2243
2244 this.applet = applet;
2245 this.epsTitle = "Java Plugin Applet";
2246 this.stream = stream;
2247 bx = x;
2248 by = y;
2249 bw = w;
2250 bh = h;
2251 width = applet.size().width;
2252 height = applet.size().height;
2253 epsPrinter = new EPSPrinter(this, epsTitle, stream,
2254 0, 0, width, height);
2255 }
2256
2257 public void printPluginPSHeader() {
2258 stream.println("%%BeginDocument: JavaPluginApplet");
2259 }
2260
2261 public void printPluginApplet() {
2262 try {
2263 epsPrinter.print();
2264 } catch (PrinterException e) {
2265 }
2266 }
2267
2268 public void printPluginPSTrailer() {
2269 stream.println("%%EndDocument: JavaPluginApplet");
2270 stream.flush();
2271 }
2272
2273 public void printAll() {
2274 printPluginPSHeader();
2275 printPluginApplet();
2276 printPluginPSTrailer();
2277 }
2278
2279 public int print(Graphics g, PageFormat pf, int pgIndex) {
2280 if (pgIndex > 0) {
2281 return Printable.NO_SUCH_PAGE;
2282 } else {
2283 // "aware" client code can detect that its been passed a
2284 // PrinterGraphics and could theoretically print
2285 // differently. I think this is more likely useful than
2286 // a problem.
2287 applet.printAll(g);
2288 return Printable.PAGE_EXISTS;
2289 }
2290 }
2291
2292 }
2293
2294 /*
2295 * This class can take an application-client supplied printable object
2296 * and send the result to a stream.
2297 * The application does not need to send any postscript to this stream
2298 * unless it needs to specify a translation etc.
2299 * It assumes that its importing application obeys all the conventions
2300 * for importation of EPS. See Appendix H - Encapsulated Postscript File
2301 * Format - of the Adobe Postscript Language Reference Manual, 2nd edition.
2302 * This class could be used as the basis for exposing the ability to
2303 * generate EPSF from 2D graphics as a StreamPrintService.
2304 * In that case a MediaPrintableArea attribute could be used to
2305 * communicate the bounding box.
2306 */
2307 public static class EPSPrinter implements Pageable {
2308
2309 private PageFormat pf;
2310 private PSPrinterJob job;
2311 private int llx, lly, urx, ury;
2312 private Printable printable;
2313 private PrintStream stream;
2314 private String epsTitle;
2315
2316 public EPSPrinter(Printable printable, String title,
2317 PrintStream stream,
2318 int x, int y, int wid, int hgt) {
2319
2320 this.printable = printable;
2321 this.epsTitle = title;
2322 this.stream = stream;
2323 llx = x;
2324 lly = y;
2325 urx = llx+wid;
2326 ury = lly+hgt;
2327 // construct a PageFormat with zero margins representing the
2328 // exact bounds of the applet. ie construct a theoretical
2329 // paper which happens to exactly match applet panel size.
2330 Paper p = new Paper();
2331 p.setSize((double)wid, (double)hgt);
2332 p.setImageableArea(0.0,0.0, (double)wid, (double)hgt);
2333 pf = new PageFormat();
2334 pf.setPaper(p);
2335 }
2336
2337 public void print() throws PrinterException {
2338 stream.println("%!PS-Adobe-3.0 EPSF-3.0");
2339 stream.println("%%BoundingBox: " +
2340 llx + " " + lly + " " + urx + " " + ury);
2341 stream.println("%%Title: " + epsTitle);
2342 stream.println("%%Creator: Java Printing");
2343 stream.println("%%CreationDate: " + new java.util.Date());
2344 stream.println("%%EndComments");
2345 stream.println("/pluginSave save def");
2346 stream.println("mark"); // for restoring stack state on return
2347
2348 job = new PSPrinterJob();
2349 job.epsPrinter = this; // modifies the behaviour of PSPrinterJob
2350 job.mPSStream = stream;
2351 job.mDestType = RasterPrinterJob.STREAM; // prevents closure
2352
2353 job.startDoc();
2354 try {
2355 job.printPage(this, 0);
2356 } catch (Throwable t) {
2357 if (t instanceof PrinterException) {
2358 throw (PrinterException)t;
2359 } else {
2360 throw new PrinterException(t.toString());
2361 }
2362 } finally {
2363 stream.println("cleartomark"); // restore stack state
2364 stream.println("pluginSave restore");
2365 job.endDoc();
2366 }
2367 stream.flush();
2368 }
2369
2370 public int getNumberOfPages() {
2371 return 1;
2372 }
2373
2374 public PageFormat getPageFormat(int pgIndex) {
2375 if (pgIndex > 0) {
2376 throw new IndexOutOfBoundsException("pgIndex");
2377 } else {
2378 return pf;
2379 }
2380 }
2381
2382 public Printable getPrintable(int pgIndex) {
2383 if (pgIndex > 0) {
2384 throw new IndexOutOfBoundsException("pgIndex");
2385 } else {
2386 return printable;
2387 }
2388 }
2389
2390 }
2391 }