J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.print; |
| 27 | |
| 28 | import java.awt.Color; |
| 29 | import java.awt.Font; |
| 30 | import java.awt.Graphics; |
| 31 | import java.awt.Graphics2D; |
| 32 | import java.awt.Image; |
| 33 | import java.awt.Paint; |
| 34 | import java.awt.Shape; |
| 35 | import java.awt.Transparency; |
| 36 | |
| 37 | import java.awt.font.FontRenderContext; |
| 38 | import java.awt.font.TextLayout; |
| 39 | |
| 40 | import java.awt.geom.AffineTransform; |
| 41 | import java.awt.geom.Area; |
| 42 | import java.awt.geom.PathIterator; |
| 43 | import java.awt.geom.Point2D; |
| 44 | import java.awt.geom.Rectangle2D; |
| 45 | import java.awt.geom.Line2D; |
| 46 | |
| 47 | import java.awt.image.BufferedImage; |
| 48 | import sun.awt.image.ByteComponentRaster; |
| 49 | |
| 50 | import java.awt.print.PageFormat; |
| 51 | import java.awt.print.Printable; |
| 52 | import java.awt.print.PrinterException; |
| 53 | import java.awt.print.PrinterJob; |
| 54 | |
| 55 | /** |
| 56 | * This class converts paths into PostScript |
| 57 | * by breaking all graphics into fills and |
| 58 | * clips of paths. |
| 59 | */ |
| 60 | |
| 61 | class PSPathGraphics extends PathGraphics { |
| 62 | |
| 63 | /** |
| 64 | * For a drawing application the initial user space |
| 65 | * resolution is 72dpi. |
| 66 | */ |
| 67 | private static final int DEFAULT_USER_RES = 72; |
| 68 | |
| 69 | PSPathGraphics(Graphics2D graphics, PrinterJob printerJob, |
| 70 | Printable painter, PageFormat pageFormat, int pageIndex, |
| 71 | boolean canRedraw) { |
| 72 | super(graphics, printerJob, painter, pageFormat, pageIndex, canRedraw); |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Creates a new <code>Graphics</code> object that is |
| 77 | * a copy of this <code>Graphics</code> object. |
| 78 | * @return a new graphics context that is a copy of |
| 79 | * this graphics context. |
| 80 | * @since JDK1.0 |
| 81 | */ |
| 82 | public Graphics create() { |
| 83 | |
| 84 | return new PSPathGraphics((Graphics2D) getDelegate().create(), |
| 85 | getPrinterJob(), |
| 86 | getPrintable(), |
| 87 | getPageFormat(), |
| 88 | getPageIndex(), |
| 89 | canDoRedraws()); |
| 90 | } |
| 91 | |
| 92 | |
| 93 | /** |
| 94 | * Override the inherited implementation of fill |
| 95 | * so that we can generate PostScript in user space |
| 96 | * rather than device space. |
| 97 | */ |
| 98 | public void fill(Shape s, Color color) { |
| 99 | deviceFill(s.getPathIterator(new AffineTransform()), color); |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Draws the text given by the specified string, using this |
| 104 | * graphics context's current font and color. The baseline of the |
| 105 | * first character is at position (<i>x</i>, <i>y</i>) in this |
| 106 | * graphics context's coordinate system. |
| 107 | * @param str the string to be drawn. |
| 108 | * @param x the <i>x</i> coordinate. |
| 109 | * @param y the <i>y</i> coordinate. |
| 110 | * @see java.awt.Graphics#drawBytes |
| 111 | * @see java.awt.Graphics#drawChars |
| 112 | * @since JDK1.0 |
| 113 | */ |
| 114 | public void drawString(String str, int x, int y) { |
| 115 | drawString(str, (float) x, (float) y); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Renders the text specified by the specified <code>String</code>, |
| 120 | * using the current <code>Font</code> and <code>Paint</code> attributes |
| 121 | * in the <code>Graphics2D</code> context. |
| 122 | * The baseline of the first character is at position |
| 123 | * (<i>x</i>, <i>y</i>) in the User Space. |
| 124 | * The rendering attributes applied include the <code>Clip</code>, |
| 125 | * <code>Transform</code>, <code>Paint</code>, <code>Font</code> and |
| 126 | * <code>Composite</code> attributes. For characters in script systems |
| 127 | * such as Hebrew and Arabic, the glyphs can be rendered from right to |
| 128 | * left, in which case the coordinate supplied is the location of the |
| 129 | * leftmost character on the baseline. |
| 130 | * @param s the <code>String</code> to be rendered |
| 131 | * @param x, y the coordinates where the <code>String</code> |
| 132 | * should be rendered |
| 133 | * @see #setPaint |
| 134 | * @see java.awt.Graphics#setColor |
| 135 | * @see java.awt.Graphics#setFont |
| 136 | * @see #setTransform |
| 137 | * @see #setComposite |
| 138 | * @see #setClip |
| 139 | */ |
| 140 | public void drawString(String str, float x, float y) { |
| 141 | drawString(str, x, y, getFont(), getFontRenderContext(), 0f); |
| 142 | } |
| 143 | |
| 144 | |
| 145 | protected boolean canDrawStringToWidth() { |
| 146 | return true; |
| 147 | } |
| 148 | |
| 149 | protected int platformFontCount(Font font, String str) { |
| 150 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); |
| 151 | return psPrinterJob.platformFontCount(font, str); |
| 152 | } |
| 153 | |
| 154 | protected void drawString(String str, float x, float y, |
| 155 | Font font, FontRenderContext frc, float w) { |
| 156 | if (str.length() == 0) { |
| 157 | return; |
| 158 | } |
| 159 | |
| 160 | /* If the Font has layout attributes we need to delegate to TextLayout. |
| 161 | * TextLayout renders text as GlyphVectors. We try to print those |
| 162 | * using printer fonts - ie using Postscript text operators so |
| 163 | * we may be reinvoked. In that case the "!printingGlyphVector" test |
| 164 | * prevents us recursing and instead sends us into the body of the |
| 165 | * method where we can safely ignore layout attributes as those |
| 166 | * are already handled by TextLayout. |
| 167 | */ |
| 168 | if (font.hasLayoutAttributes() && !printingGlyphVector) { |
| 169 | TextLayout layout = new TextLayout(str, font, frc); |
| 170 | layout.draw(this, x, y); |
| 171 | return; |
| 172 | } |
| 173 | |
| 174 | Font oldFont = getFont(); |
| 175 | if (!oldFont.equals(font)) { |
| 176 | setFont(font); |
| 177 | } else { |
| 178 | oldFont = null; |
| 179 | } |
| 180 | |
| 181 | boolean drawnWithPS = false; |
| 182 | |
| 183 | float translateX = 0f, translateY = 0f; |
| 184 | boolean fontisTransformed = getFont().isTransformed(); |
| 185 | |
| 186 | if (fontisTransformed) { |
| 187 | AffineTransform fontTx = getFont().getTransform(); |
| 188 | int transformType = fontTx.getType(); |
| 189 | /* TYPE_TRANSLATION is a flag bit but we can do "==" here |
| 190 | * because we want to detect when its just that bit set and |
| 191 | * |
| 192 | */ |
| 193 | if (transformType == AffineTransform.TYPE_TRANSLATION) { |
| 194 | translateX = (float)(fontTx.getTranslateX()); |
| 195 | translateY = (float)(fontTx.getTranslateY()); |
| 196 | if (Math.abs(translateX) < 0.00001) translateX = 0f; |
| 197 | if (Math.abs(translateY) < 0.00001) translateY = 0f; |
| 198 | fontisTransformed = false; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | boolean directToPS = !fontisTransformed; |
| 203 | |
| 204 | if (!PSPrinterJob.shapeTextProp && directToPS) { |
| 205 | |
| 206 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); |
| 207 | if (psPrinterJob.setFont(getFont())) { |
| 208 | |
| 209 | /* Set the text color. |
| 210 | * We should not be in this shape printing path |
| 211 | * if the application is drawing with non-solid |
| 212 | * colors. We should be in the raster path. Because |
| 213 | * we are here in the shape path, the cast of the |
| 214 | * paint to a Color should be fine. |
| 215 | */ |
| 216 | try { |
| 217 | psPrinterJob.setColor((Color)getPaint()); |
| 218 | } catch (ClassCastException e) { |
| 219 | if (oldFont != null) { |
| 220 | setFont(oldFont); |
| 221 | } |
| 222 | throw new IllegalArgumentException( |
| 223 | "Expected a Color instance"); |
| 224 | } |
| 225 | |
| 226 | psPrinterJob.setTransform(getTransform()); |
| 227 | psPrinterJob.setClip(getClip()); |
| 228 | |
| 229 | drawnWithPS = psPrinterJob.textOut(this, str, |
| 230 | x+translateX, y+translateY, |
| 231 | font, frc, w); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | /* The text could not be converted directly to PS text |
| 236 | * calls so decompose the text into a shape. |
| 237 | */ |
| 238 | if (drawnWithPS == false) { |
| 239 | if (oldFont != null) { |
| 240 | setFont(oldFont); |
| 241 | oldFont = null; |
| 242 | } |
| 243 | super.drawString(str, x, y, font, frc, w); |
| 244 | } |
| 245 | |
| 246 | if (oldFont != null) { |
| 247 | setFont(oldFont); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * The various <code>drawImage()</code> methods for |
| 253 | * <code>WPathGraphics</code> are all decomposed |
| 254 | * into an invocation of <code>drawImageToPlatform</code>. |
| 255 | * The portion of the passed in image defined by |
| 256 | * <code>srcX, srcY, srcWidth, and srcHeight</code> |
| 257 | * is transformed by the supplied AffineTransform and |
| 258 | * drawn using PS to the printer context. |
| 259 | * |
| 260 | * @param img The image to be drawn. |
| 261 | * This method does nothing if <code>img</code> is null. |
| 262 | * @param xform Used to tranform the image before drawing. |
| 263 | * This can be null. |
| 264 | * @param bgcolor This color is drawn where the image has transparent |
| 265 | * pixels. If this parameter is null then the |
| 266 | * pixels already in the destination should show |
| 267 | * through. |
| 268 | * @param srcX With srcY this defines the upper-left corner |
| 269 | * of the portion of the image to be drawn. |
| 270 | * |
| 271 | * @param srcY With srcX this defines the upper-left corner |
| 272 | * of the portion of the image to be drawn. |
| 273 | * @param srcWidth The width of the portion of the image to |
| 274 | * be drawn. |
| 275 | * @param srcHeight The height of the portion of the image to |
| 276 | * be drawn. |
| 277 | * @param handlingTransparency if being recursively called to |
| 278 | * print opaque region of transparent image |
| 279 | */ |
| 280 | protected boolean drawImageToPlatform(Image image, AffineTransform xform, |
| 281 | Color bgcolor, |
| 282 | int srcX, int srcY, |
| 283 | int srcWidth, int srcHeight, |
| 284 | boolean handlingTransparency) { |
| 285 | |
| 286 | BufferedImage img = getBufferedImage(image); |
| 287 | if (img == null) { |
| 288 | return true; |
| 289 | } |
| 290 | |
| 291 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); |
| 292 | |
| 293 | /* The full transform to be applied to the image is the |
| 294 | * caller's transform concatenated on to the transform |
| 295 | * from user space to device space. If the caller didn't |
| 296 | * supply a transform then we just act as if they passed |
| 297 | * in the identify transform. |
| 298 | */ |
| 299 | AffineTransform fullTransform = getTransform(); |
| 300 | if (xform == null) { |
| 301 | xform = new AffineTransform(); |
| 302 | } |
| 303 | fullTransform.concatenate(xform); |
| 304 | |
| 305 | /* Split the full transform into a pair of |
| 306 | * transforms. The first transform holds effects |
| 307 | * such as rotation and shearing. The second transform |
| 308 | * is setup to hold only the scaling effects. |
| 309 | * These transforms are created such that a point, |
| 310 | * p, in user space, when transformed by 'fullTransform' |
| 311 | * lands in the same place as when it is transformed |
| 312 | * by 'rotTransform' and then 'scaleTransform'. |
| 313 | * |
| 314 | * The entire image transformation is not in Java in order |
| 315 | * to minimize the amount of memory needed in the VM. By |
| 316 | * dividing the transform in two, we rotate and shear |
| 317 | * the source image in its own space and only go to |
| 318 | * the, usually, larger, device space when we ask |
| 319 | * PostScript to perform the final scaling. |
| 320 | */ |
| 321 | double[] fullMatrix = new double[6]; |
| 322 | fullTransform.getMatrix(fullMatrix); |
| 323 | |
| 324 | /* Calculate the amount of scaling in the x |
| 325 | * and y directions. This scaling is computed by |
| 326 | * transforming a unit vector along each axis |
| 327 | * and computing the resulting magnitude. |
| 328 | * The computed values 'scaleX' and 'scaleY' |
| 329 | * represent the amount of scaling PS will be asked |
| 330 | * to perform. |
| 331 | * Clamp this to the device scale for better quality printing. |
| 332 | */ |
| 333 | Point2D.Float unitVectorX = new Point2D.Float(1, 0); |
| 334 | Point2D.Float unitVectorY = new Point2D.Float(0, 1); |
| 335 | fullTransform.deltaTransform(unitVectorX, unitVectorX); |
| 336 | fullTransform.deltaTransform(unitVectorY, unitVectorY); |
| 337 | |
| 338 | Point2D.Float origin = new Point2D.Float(0, 0); |
| 339 | double scaleX = unitVectorX.distance(origin); |
| 340 | double scaleY = unitVectorY.distance(origin); |
| 341 | |
| 342 | double devResX = psPrinterJob.getXRes(); |
| 343 | double devResY = psPrinterJob.getYRes(); |
| 344 | double devScaleX = devResX / DEFAULT_USER_RES; |
| 345 | double devScaleY = devResY / DEFAULT_USER_RES; |
| 346 | |
| 347 | if (scaleX > devScaleX) scaleX = devScaleX; |
| 348 | if (scaleY > devScaleY) scaleY = devScaleY; |
| 349 | |
| 350 | /* We do not need to draw anything if either scaling |
| 351 | * factor is zero. |
| 352 | */ |
| 353 | if (scaleX != 0 && scaleY != 0) { |
| 354 | |
| 355 | /* Here's the transformation we will do with Java2D, |
| 356 | */ |
| 357 | AffineTransform rotTransform = new AffineTransform( |
| 358 | fullMatrix[0] / scaleX, //m00 |
| 359 | fullMatrix[1] / scaleY, //m10 |
| 360 | fullMatrix[2] / scaleX, //m01 |
| 361 | fullMatrix[3] / scaleY, //m11 |
| 362 | fullMatrix[4] / scaleX, //m02 |
| 363 | fullMatrix[5] / scaleY); //m12 |
| 364 | |
| 365 | /* The scale transform is not used directly: we instead |
| 366 | * directly multiply by scaleX and scaleY. |
| 367 | * |
| 368 | * Conceptually here is what the scaleTransform is: |
| 369 | * |
| 370 | * AffineTransform scaleTransform = new AffineTransform( |
| 371 | * scaleX, //m00 |
| 372 | * 0, //m10 |
| 373 | * 0, //m01 |
| 374 | * scaleY, //m11 |
| 375 | * 0, //m02 |
| 376 | * 0); //m12 |
| 377 | */ |
| 378 | |
| 379 | /* Convert the image source's rectangle into the rotated |
| 380 | * and sheared space. Once there, we calculate a rectangle |
| 381 | * that encloses the resulting shape. It is this rectangle |
| 382 | * which defines the size of the BufferedImage we need to |
| 383 | * create to hold the transformed image. |
| 384 | */ |
| 385 | Rectangle2D.Float srcRect = new Rectangle2D.Float(srcX, srcY, |
| 386 | srcWidth, |
| 387 | srcHeight); |
| 388 | |
| 389 | Shape rotShape = rotTransform.createTransformedShape(srcRect); |
| 390 | Rectangle2D rotBounds = rotShape.getBounds2D(); |
| 391 | |
| 392 | /* add a fudge factor as some fp precision problems have |
| 393 | * been observed which caused pixels to be rounded down and |
| 394 | * out of the image. |
| 395 | */ |
| 396 | rotBounds.setRect(rotBounds.getX(), rotBounds.getY(), |
| 397 | rotBounds.getWidth()+0.001, |
| 398 | rotBounds.getHeight()+0.001); |
| 399 | |
| 400 | int boundsWidth = (int) rotBounds.getWidth(); |
| 401 | int boundsHeight = (int) rotBounds.getHeight(); |
| 402 | |
| 403 | if (boundsWidth > 0 && boundsHeight > 0) { |
| 404 | |
| 405 | |
| 406 | /* If the image has transparent or semi-transparent |
| 407 | * pixels then we'll have the application re-render |
| 408 | * the portion of the page covered by the image. |
| 409 | * This will be done in a later call to print using the |
| 410 | * saved graphics state. |
| 411 | * However several special cases can be handled otherwise: |
| 412 | * - bitmask transparency with a solid background colour |
| 413 | * - images which have transparency color models but no |
| 414 | * transparent pixels |
| 415 | * - images with bitmask transparency and an IndexColorModel |
| 416 | * (the common transparent GIF case) can be handled by |
| 417 | * rendering just the opaque pixels. |
| 418 | */ |
| 419 | boolean drawOpaque = true; |
| 420 | if (!handlingTransparency && hasTransparentPixels(img)) { |
| 421 | drawOpaque = false; |
| 422 | if (isBitmaskTransparency(img)) { |
| 423 | if (bgcolor == null) { |
| 424 | if (drawBitmaskImage(img, xform, bgcolor, |
| 425 | srcX, srcY, |
| 426 | srcWidth, srcHeight)) { |
| 427 | // image drawn, just return. |
| 428 | return true; |
| 429 | } |
| 430 | } else if (bgcolor.getTransparency() |
| 431 | == Transparency.OPAQUE) { |
| 432 | drawOpaque = true; |
| 433 | } |
| 434 | } |
| 435 | if (!canDoRedraws()) { |
| 436 | drawOpaque = true; |
| 437 | } |
| 438 | } else { |
| 439 | // if there's no transparent pixels there's no need |
| 440 | // for a background colour. This can avoid edge artifacts |
| 441 | // in rotation cases. |
| 442 | bgcolor = null; |
| 443 | } |
| 444 | // if src region extends beyond the image, the "opaque" path |
| 445 | // may blit b/g colour (including white) where it shoudn't. |
| 446 | if ((srcX+srcWidth > img.getWidth(null) || |
| 447 | srcY+srcHeight > img.getHeight(null)) |
| 448 | && canDoRedraws()) { |
| 449 | drawOpaque = false; |
| 450 | } |
| 451 | if (drawOpaque == false) { |
| 452 | |
| 453 | fullTransform.getMatrix(fullMatrix); |
| 454 | AffineTransform tx = |
| 455 | new AffineTransform( |
| 456 | fullMatrix[0] / devScaleX, //m00 |
| 457 | fullMatrix[1] / devScaleY, //m10 |
| 458 | fullMatrix[2] / devScaleX, //m01 |
| 459 | fullMatrix[3] / devScaleY, //m11 |
| 460 | fullMatrix[4] / devScaleX, //m02 |
| 461 | fullMatrix[5] / devScaleY); //m12 |
| 462 | |
| 463 | Rectangle2D.Float rect = |
| 464 | new Rectangle2D.Float(srcX, srcY, srcWidth, srcHeight); |
| 465 | |
| 466 | Shape shape = fullTransform.createTransformedShape(rect); |
| 467 | // Region isn't user space because its potentially |
| 468 | // been rotated for landscape. |
| 469 | Rectangle2D region = shape.getBounds2D(); |
| 470 | |
| 471 | region.setRect(region.getX(), region.getY(), |
| 472 | region.getWidth()+0.001, |
| 473 | region.getHeight()+0.001); |
| 474 | |
| 475 | // Try to limit the amount of memory used to 8Mb, so |
| 476 | // if at device resolution this exceeds a certain |
| 477 | // image size then scale down the region to fit in |
| 478 | // that memory, but never to less than 72 dpi. |
| 479 | |
| 480 | int w = (int)region.getWidth(); |
| 481 | int h = (int)region.getHeight(); |
| 482 | int nbytes = w * h * 3; |
| 483 | int maxBytes = 8 * 1024 * 1024; |
| 484 | double origDpi = (devResX < devResY) ? devResX : devResY; |
| 485 | int dpi = (int)origDpi; |
| 486 | double scaleFactor = 1; |
| 487 | |
| 488 | double maxSFX = w/(double)boundsWidth; |
| 489 | double maxSFY = h/(double)boundsHeight; |
| 490 | double maxSF = (maxSFX > maxSFY) ? maxSFY : maxSFX; |
| 491 | int minDpi = (int)(dpi/maxSF); |
| 492 | if (minDpi < DEFAULT_USER_RES) minDpi = DEFAULT_USER_RES; |
| 493 | |
| 494 | while (nbytes > maxBytes && dpi > minDpi) { |
| 495 | scaleFactor *= 2; |
| 496 | dpi /= 2; |
| 497 | nbytes /= 4; |
| 498 | } |
| 499 | if (dpi < minDpi) { |
| 500 | scaleFactor = (origDpi / minDpi); |
| 501 | } |
| 502 | |
| 503 | region.setRect(region.getX()/scaleFactor, |
| 504 | region.getY()/scaleFactor, |
| 505 | region.getWidth()/scaleFactor, |
| 506 | region.getHeight()/scaleFactor); |
| 507 | |
| 508 | /* |
| 509 | * We need to have the clip as part of the saved state, |
| 510 | * either directly, or all the components that are |
| 511 | * needed to reconstitute it (image source area, |
| 512 | * image transform and current graphics transform). |
| 513 | * The clip is described in user space, so we need to |
| 514 | * save the current graphics transform anyway so just |
| 515 | * save these two. |
| 516 | */ |
| 517 | psPrinterJob.saveState(getTransform(), getClip(), |
| 518 | region, scaleFactor, scaleFactor); |
| 519 | return true; |
| 520 | |
| 521 | /* The image can be rendered directly by PS so we |
| 522 | * copy it into a BufferedImage (this takes care of |
| 523 | * ColorSpace and BufferedImageOp issues) and then |
| 524 | * send that to PS. |
| 525 | */ |
| 526 | } else { |
| 527 | |
| 528 | /* Create a buffered image big enough to hold the portion |
| 529 | * of the source image being printed. |
| 530 | */ |
| 531 | BufferedImage deepImage = new BufferedImage( |
| 532 | (int) rotBounds.getWidth(), |
| 533 | (int) rotBounds.getHeight(), |
| 534 | BufferedImage.TYPE_3BYTE_BGR); |
| 535 | |
| 536 | /* Setup a Graphics2D on to the BufferedImage so that the |
| 537 | * source image when copied, lands within the image buffer. |
| 538 | */ |
| 539 | Graphics2D imageGraphics = deepImage.createGraphics(); |
| 540 | imageGraphics.clipRect(0, 0, |
| 541 | deepImage.getWidth(), |
| 542 | deepImage.getHeight()); |
| 543 | |
| 544 | imageGraphics.translate(-rotBounds.getX(), |
| 545 | -rotBounds.getY()); |
| 546 | imageGraphics.transform(rotTransform); |
| 547 | |
| 548 | /* Fill the BufferedImage either with the caller supplied |
| 549 | * color, 'bgColor' or, if null, with white. |
| 550 | */ |
| 551 | if (bgcolor == null) { |
| 552 | bgcolor = Color.white; |
| 553 | } |
| 554 | |
| 555 | /* REMIND: no need to use scaling here. */ |
| 556 | imageGraphics.drawImage(img, |
| 557 | srcX, srcY, |
| 558 | srcX + srcWidth, srcY + srcHeight, |
| 559 | srcX, srcY, |
| 560 | srcX + srcWidth, srcY + srcHeight, |
| 561 | bgcolor, null); |
| 562 | |
| 563 | /* In PSPrinterJob images are printed in device space |
| 564 | * and therefore we need to set a device space clip. |
| 565 | * FIX: this is an overly tight coupling of these |
| 566 | * two classes. |
| 567 | * The temporary clip set needs to be an intersection |
| 568 | * with the previous user clip. |
| 569 | * REMIND: two xfms may lose accuracy in clip path. |
| 570 | */ |
| 571 | Shape holdClip = getClip(); |
| 572 | Shape oldClip = |
| 573 | getTransform().createTransformedShape(holdClip); |
| 574 | AffineTransform sat = AffineTransform.getScaleInstance( |
| 575 | scaleX, scaleY); |
| 576 | Shape imgClip = sat.createTransformedShape(rotShape); |
| 577 | Area imgArea = new Area(imgClip); |
| 578 | Area oldArea = new Area(oldClip); |
| 579 | imgArea.intersect(oldArea); |
| 580 | psPrinterJob.setClip(imgArea); |
| 581 | |
| 582 | /* Scale the bounding rectangle by the scale transform. |
| 583 | * Because the scaling transform has only x and y |
| 584 | * scaling components it is equivalent to multiply |
| 585 | * the x components of the bounding rectangle by |
| 586 | * the x scaling factor and to multiply the y components |
| 587 | * by the y scaling factor. |
| 588 | */ |
| 589 | Rectangle2D.Float scaledBounds |
| 590 | = new Rectangle2D.Float( |
| 591 | (float) (rotBounds.getX() * scaleX), |
| 592 | (float) (rotBounds.getY() * scaleY), |
| 593 | (float) (rotBounds.getWidth() * scaleX), |
| 594 | (float) (rotBounds.getHeight() * scaleY)); |
| 595 | |
| 596 | |
| 597 | /* Pull the raster data from the buffered image |
| 598 | * and pass it along to PS. |
| 599 | */ |
| 600 | ByteComponentRaster tile = |
| 601 | (ByteComponentRaster)deepImage.getRaster(); |
| 602 | |
| 603 | psPrinterJob.drawImageBGR(tile.getDataStorage(), |
| 604 | scaledBounds.x, scaledBounds.y, |
| 605 | (float)Math.rint(scaledBounds.width+0.5), |
| 606 | (float)Math.rint(scaledBounds.height+0.5), |
| 607 | 0f, 0f, |
| 608 | deepImage.getWidth(), deepImage.getHeight(), |
| 609 | deepImage.getWidth(), deepImage.getHeight()); |
| 610 | |
| 611 | /* Reset the device clip to match user clip */ |
| 612 | psPrinterJob.setClip( |
| 613 | getTransform().createTransformedShape(holdClip)); |
| 614 | |
| 615 | |
| 616 | imageGraphics.dispose(); |
| 617 | } |
| 618 | |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | return true; |
| 623 | } |
| 624 | |
| 625 | /** Redraw a rectanglular area using a proxy graphics |
| 626 | * To do this we need to know the rectangular area to redraw and |
| 627 | * the transform & clip in effect at the time of the original drawImage |
| 628 | * |
| 629 | */ |
| 630 | |
| 631 | public void redrawRegion(Rectangle2D region, double scaleX, double scaleY, |
| 632 | Shape savedClip, AffineTransform savedTransform) |
| 633 | |
| 634 | throws PrinterException { |
| 635 | |
| 636 | PSPrinterJob psPrinterJob = (PSPrinterJob)getPrinterJob(); |
| 637 | Printable painter = getPrintable(); |
| 638 | PageFormat pageFormat = getPageFormat(); |
| 639 | int pageIndex = getPageIndex(); |
| 640 | |
| 641 | /* Create a buffered image big enough to hold the portion |
| 642 | * of the source image being printed. |
| 643 | */ |
| 644 | BufferedImage deepImage = new BufferedImage( |
| 645 | (int) region.getWidth(), |
| 646 | (int) region.getHeight(), |
| 647 | BufferedImage.TYPE_3BYTE_BGR); |
| 648 | |
| 649 | /* Get a graphics for the application to render into. |
| 650 | * We initialize the buffer to white in order to |
| 651 | * match the paper and then we shift the BufferedImage |
| 652 | * so that it covers the area on the page where the |
| 653 | * caller's Image will be drawn. |
| 654 | */ |
| 655 | Graphics2D g = deepImage.createGraphics(); |
| 656 | ProxyGraphics2D proxy = new ProxyGraphics2D(g, psPrinterJob); |
| 657 | proxy.setColor(Color.white); |
| 658 | proxy.fillRect(0, 0, deepImage.getWidth(), deepImage.getHeight()); |
| 659 | proxy.clipRect(0, 0, deepImage.getWidth(), deepImage.getHeight()); |
| 660 | |
| 661 | proxy.translate(-region.getX(), -region.getY()); |
| 662 | |
| 663 | /* Calculate the resolution of the source image. |
| 664 | */ |
| 665 | float sourceResX = (float)(psPrinterJob.getXRes() / scaleX); |
| 666 | float sourceResY = (float)(psPrinterJob.getYRes() / scaleY); |
| 667 | |
| 668 | /* The application expects to see user space at 72 dpi. |
| 669 | * so change user space from image source resolution to |
| 670 | * 72 dpi. |
| 671 | */ |
| 672 | proxy.scale(sourceResX / DEFAULT_USER_RES, |
| 673 | sourceResY / DEFAULT_USER_RES); |
| 674 | proxy.translate( |
| 675 | -psPrinterJob.getPhysicalPrintableX(pageFormat.getPaper()) |
| 676 | / psPrinterJob.getXRes() * DEFAULT_USER_RES, |
| 677 | -psPrinterJob.getPhysicalPrintableY(pageFormat.getPaper()) |
| 678 | / psPrinterJob.getYRes() * DEFAULT_USER_RES); |
| 679 | /* NB User space now has to be at 72 dpi for this calc to be correct */ |
| 680 | proxy.transform(new AffineTransform(getPageFormat().getMatrix())); |
| 681 | |
| 682 | proxy.setPaint(Color.black); |
| 683 | |
| 684 | painter.print(proxy, pageFormat, pageIndex); |
| 685 | |
| 686 | g.dispose(); |
| 687 | |
| 688 | /* In PSPrinterJob images are printed in device space |
| 689 | * and therefore we need to set a device space clip. |
| 690 | */ |
| 691 | psPrinterJob.setClip(savedTransform.createTransformedShape(savedClip)); |
| 692 | |
| 693 | |
| 694 | /* Scale the bounding rectangle by the scale transform. |
| 695 | * Because the scaling transform has only x and y |
| 696 | * scaling components it is equivalent to multiply |
| 697 | * the x components of the bounding rectangle by |
| 698 | * the x scaling factor and to multiply the y components |
| 699 | * by the y scaling factor. |
| 700 | */ |
| 701 | Rectangle2D.Float scaledBounds |
| 702 | = new Rectangle2D.Float( |
| 703 | (float) (region.getX() * scaleX), |
| 704 | (float) (region.getY() * scaleY), |
| 705 | (float) (region.getWidth() * scaleX), |
| 706 | (float) (region.getHeight() * scaleY)); |
| 707 | |
| 708 | |
| 709 | /* Pull the raster data from the buffered image |
| 710 | * and pass it along to PS. |
| 711 | */ |
| 712 | ByteComponentRaster tile = (ByteComponentRaster)deepImage.getRaster(); |
| 713 | |
| 714 | psPrinterJob.drawImageBGR(tile.getDataStorage(), |
| 715 | scaledBounds.x, scaledBounds.y, |
| 716 | scaledBounds.width, |
| 717 | scaledBounds.height, |
| 718 | 0f, 0f, |
| 719 | deepImage.getWidth(), deepImage.getHeight(), |
| 720 | deepImage.getWidth(), deepImage.getHeight()); |
| 721 | |
| 722 | |
| 723 | } |
| 724 | |
| 725 | |
| 726 | /* |
| 727 | * Fill the path defined by <code>pathIter</code> |
| 728 | * with the specified color. |
| 729 | * The path is provided in current user space. |
| 730 | */ |
| 731 | protected void deviceFill(PathIterator pathIter, Color color) { |
| 732 | |
| 733 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); |
| 734 | psPrinterJob.deviceFill(pathIter, color, getTransform(), getClip()); |
| 735 | } |
| 736 | |
| 737 | /* |
| 738 | * Draw the bounding rectangle using path by calling draw() |
| 739 | * function and passing a rectangle shape. |
| 740 | */ |
| 741 | protected void deviceFrameRect(int x, int y, int width, int height, |
| 742 | Color color) { |
| 743 | |
| 744 | draw(new Rectangle2D.Float(x, y, width, height)); |
| 745 | } |
| 746 | |
| 747 | /* |
| 748 | * Draw a line using path by calling draw() function and passing |
| 749 | * a line shape. |
| 750 | */ |
| 751 | protected void deviceDrawLine(int xBegin, int yBegin, |
| 752 | int xEnd, int yEnd, Color color) { |
| 753 | |
| 754 | draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd)); |
| 755 | } |
| 756 | |
| 757 | /* |
| 758 | * Fill the rectangle with the specified color by calling fill(). |
| 759 | */ |
| 760 | protected void deviceFillRect(int x, int y, int width, int height, |
| 761 | Color color) { |
| 762 | fill(new Rectangle2D.Float(x, y, width, height)); |
| 763 | } |
| 764 | |
| 765 | |
| 766 | /* |
| 767 | * This method should not be invoked by PSPathGraphics. |
| 768 | * FIX: Rework PathGraphics so that this method is |
| 769 | * not an abstract method there. |
| 770 | */ |
| 771 | protected void deviceClip(PathIterator pathIter) { |
| 772 | } |
| 773 | |
| 774 | } |