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