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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2008, 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.Font; | ||
| 30 | import java.awt.Graphics; | ||
| 31 | import java.awt.Graphics2D; | ||
| 32 | import java.awt.Image; | ||
| 33 | import java.awt.Shape; | ||
| 34 | import java.awt.Transparency; | ||
| 35 | |||
| 36 | import java.awt.font.FontRenderContext; | ||
| 37 | import java.awt.font.TextLayout; | ||
| 38 | |||
| 39 | import java.awt.geom.AffineTransform; | ||
| 40 | import java.awt.geom.Area; | ||
| 41 | import java.awt.geom.PathIterator; | ||
| 42 | import java.awt.geom.Point2D; | ||
| 43 | import java.awt.geom.Rectangle2D; | ||
| 44 | import java.awt.geom.Line2D; | ||
| 45 | |||
| 46 | import java.awt.image.BufferedImage; | ||
| 47 | import sun.awt.image.ByteComponentRaster; | ||
| 48 | |||
| 49 | import java.awt.print.PageFormat; | ||
| 50 | import java.awt.print.Printable; | ||
| 51 | import java.awt.print.PrinterException; | ||
| 52 | import java.awt.print.PrinterJob; | ||
| 53 | |||
| 54 | /** | ||
| 55 | * This class converts paths into PostScript | ||
| 56 | * by breaking all graphics into fills and | ||
| 57 | * clips of paths. | ||
| 58 | */ | ||
| 59 | |||
| 60 | class PSPathGraphics extends PathGraphics { | ||
| 61 | |||
| 62 | /** | ||
| 63 | * For a drawing application the initial user space | ||
| 64 | * resolution is 72dpi. | ||
| 65 | */ | ||
| 66 | private static final int DEFAULT_USER_RES = 72; | ||
| 67 | |||
| 68 | PSPathGraphics(Graphics2D graphics, PrinterJob printerJob, | ||
| 69 | Printable painter, PageFormat pageFormat, int pageIndex, | ||
| 70 | boolean canRedraw) { | ||
| 71 | super(graphics, printerJob, painter, pageFormat, pageIndex, canRedraw); | ||
| 72 | } | ||
| 73 | |||
| 74 | /** | ||
| 75 | * Creates a new <code>Graphics</code> object that is | ||
| 76 | * a copy of this <code>Graphics</code> object. | ||
| 77 | * @return a new graphics context that is a copy of | ||
| 78 | * this graphics context. | ||
| 79 | * @since JDK1.0 | ||
| 80 | */ | ||
| 81 | public Graphics create() { | ||
| 82 | |||
| 83 | return new PSPathGraphics((Graphics2D) getDelegate().create(), | ||
| 84 | getPrinterJob(), | ||
| 85 | getPrintable(), | ||
| 86 | getPageFormat(), | ||
| 87 | getPageIndex(), | ||
| 88 | canDoRedraws()); | ||
| 89 | } | ||
| 90 | |||
| 91 | |||
| 92 | /** | ||
| 93 | * Override the inherited implementation of fill | ||
| 94 | * so that we can generate PostScript in user space | ||
| 95 | * rather than device space. | ||
| 96 | */ | ||
| 97 | public void fill(Shape s, Color color) { | ||
| 98 | deviceFill(s.getPathIterator(new AffineTransform()), color); | ||
| 99 | } | ||
| 100 | |||
| 101 | /** | ||
| 102 | * Draws the text given by the specified string, using this | ||
| 103 | * graphics context's current font and color. The baseline of the | ||
| 104 | * first character is at position (<i>x</i>, <i>y</i>) in this | ||
| 105 | * graphics context's coordinate system. | ||
| 106 | * @param str the string to be drawn. | ||
| 107 | * @param x the <i>x</i> coordinate. | ||
| 108 | * @param y the <i>y</i> coordinate. | ||
| 109 | * @see java.awt.Graphics#drawBytes | ||
| 110 | * @see java.awt.Graphics#drawChars | ||
| 111 | * @since JDK1.0 | ||
| 112 | */ | ||
| 113 | public void drawString(String str, int x, int y) { | ||
| 114 | drawString(str, (float) x, (float) y); | ||
| 115 | } | ||
| 116 | |||
| 117 | /** | ||
| 118 | * Renders the text specified by the specified <code>String</code>, | ||
| 119 | * using the current <code>Font</code> and <code>Paint</code> attributes | ||
| 120 | * in the <code>Graphics2D</code> context. | ||
| 121 | * The baseline of the first character is at position | ||
| 122 | * (<i>x</i>, <i>y</i>) in the User Space. | ||
| 123 | * The rendering attributes applied include the <code>Clip</code>, | ||
| 124 | * <code>Transform</code>, <code>Paint</code>, <code>Font</code> and | ||
| 125 | * <code>Composite</code> attributes. For characters in script systems | ||
| 126 | * such as Hebrew and Arabic, the glyphs can be rendered from right to | ||
| 127 | * left, in which case the coordinate supplied is the location of the | ||
| 128 | * leftmost character on the baseline. | ||
| 129 | * @param s the <code>String</code> to be rendered | ||
| 130 | * @param x, y the coordinates where the <code>String</code> | ||
| 131 | * should be rendered | ||
| 132 | * @see #setPaint | ||
| 133 | * @see java.awt.Graphics#setColor | ||
| 134 | * @see java.awt.Graphics#setFont | ||
| 135 | * @see #setTransform | ||
| 136 | * @see #setComposite | ||
| 137 | * @see #setClip | ||
| 138 | */ | ||
| 139 | public void drawString(String str, float x, float y) { | ||
| 140 | drawString(str, x, y, getFont(), getFontRenderContext(), 0f); | ||
| 141 | } | ||
| 142 | |||
| 143 | |||
| 144 | protected boolean canDrawStringToWidth() { | ||
| 145 | return true; | ||
| 146 | } | ||
| 147 | |||
| 148 | protected int platformFontCount(Font font, String str) { | ||
| 149 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); | ||
| 150 | return psPrinterJob.platformFontCount(font, str); | ||
| 151 | } | ||
| 152 | |||
| 153 | protected void drawString(String str, float x, float y, | ||
| 154 | Font font, FontRenderContext frc, float w) { | ||
| 155 | if (str.length() == 0) { | ||
| 156 | return; | ||
| 157 | } | ||
| 158 | |||
| 159 | /* If the Font has layout attributes we need to delegate to TextLayout. | ||
| 160 | * TextLayout renders text as GlyphVectors. We try to print those | ||
| 161 | * using printer fonts - ie using Postscript text operators so | ||
| 162 | * we may be reinvoked. In that case the "!printingGlyphVector" test | ||
| 163 | * prevents us recursing and instead sends us into the body of the | ||
| 164 | * method where we can safely ignore layout attributes as those | ||
| 165 | * are already handled by TextLayout. | ||
| 166 | */ | ||
| 167 | if (font.hasLayoutAttributes() && !printingGlyphVector) { | ||
| 168 | TextLayout layout = new TextLayout(str, font, frc); | ||
| 169 | layout.draw(this, x, y); | ||
| 170 | return; | ||
| 171 | } | ||
| 172 | |||
| 173 | Font oldFont = getFont(); | ||
| 174 | if (!oldFont.equals(font)) { | ||
| 175 | setFont(font); | ||
| 176 | } else { | ||
| 177 | oldFont = null; | ||
| 178 | } | ||
| 179 | |||
| 180 | boolean drawnWithPS = false; | ||
| 181 | |||
| 182 | float translateX = 0f, translateY = 0f; | ||
| 183 | boolean fontisTransformed = getFont().isTransformed(); | ||
| 184 | |||
| 185 | if (fontisTransformed) { | ||
| 186 | AffineTransform fontTx = getFont().getTransform(); | ||
| 187 | int transformType = fontTx.getType(); | ||
| 188 | /* TYPE_TRANSLATION is a flag bit but we can do "==" here | ||
| 189 | * because we want to detect when its just that bit set and | ||
| 190 | * | ||
| 191 | */ | ||
| 192 | if (transformType == AffineTransform.TYPE_TRANSLATION) { | ||
| 193 | translateX = (float)(fontTx.getTranslateX()); | ||
| 194 | translateY = (float)(fontTx.getTranslateY()); | ||
| 195 | if (Math.abs(translateX) < 0.00001) translateX = 0f; | ||
| 196 | if (Math.abs(translateY) < 0.00001) translateY = 0f; | ||
| 197 | fontisTransformed = false; | ||
| 198 | } | ||
| 199 | } | ||
| 200 | |||
| 201 | boolean directToPS = !fontisTransformed; | ||
| 202 | |||
| 203 | if (!PSPrinterJob.shapeTextProp && directToPS) { | ||
| 204 | |||
| 205 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); | ||
| 206 | if (psPrinterJob.setFont(getFont())) { | ||
| 207 | |||
| 208 | /* Set the text color. | ||
| 209 | * We should not be in this shape printing path | ||
| 210 | * if the application is drawing with non-solid | ||
| 211 | * colors. We should be in the raster path. Because | ||
| 212 | * we are here in the shape path, the cast of the | ||
| 213 | * paint to a Color should be fine. | ||
| 214 | */ | ||
| 215 | try { | ||
| 216 | psPrinterJob.setColor((Color)getPaint()); | ||
| 217 | } catch (ClassCastException e) { | ||
| 218 | if (oldFont != null) { | ||
| 219 | setFont(oldFont); | ||
| 220 | } | ||
| 221 | throw new IllegalArgumentException( | ||
| 222 | "Expected a Color instance"); | ||
| 223 | } | ||
| 224 | |||
| 225 | psPrinterJob.setTransform(getTransform()); | ||
| 226 | psPrinterJob.setClip(getClip()); | ||
| 227 | |||
| 228 | drawnWithPS = psPrinterJob.textOut(this, str, | ||
| 229 | x+translateX, y+translateY, | ||
| 230 | font, frc, w); | ||
| 231 | } | ||
| 232 | } | ||
| 233 | |||
| 234 | /* The text could not be converted directly to PS text | ||
| 235 | * calls so decompose the text into a shape. | ||
| 236 | */ | ||
| 237 | if (drawnWithPS == false) { | ||
| 238 | if (oldFont != null) { | ||
| 239 | setFont(oldFont); | ||
| 240 | oldFont = null; | ||
| 241 | } | ||
| 242 | super.drawString(str, x, y, font, frc, w); | ||
| 243 | } | ||
| 244 | |||
| 245 | if (oldFont != null) { | ||
| 246 | setFont(oldFont); | ||
| 247 | } | ||
| 248 | } | ||
| 249 | |||
| 250 | /** | ||
| 251 | * The various <code>drawImage()</code> methods for | ||
| 252 | * <code>WPathGraphics</code> are all decomposed | ||
| 253 | * into an invocation of <code>drawImageToPlatform</code>. | ||
| 254 | * The portion of the passed in image defined by | ||
| 255 | * <code>srcX, srcY, srcWidth, and srcHeight</code> | ||
| 256 | * is transformed by the supplied AffineTransform and | ||
| 257 | * drawn using PS to the printer context. | ||
| 258 | * | ||
| 259 | * @param img The image to be drawn. | ||
| 260 | * This method does nothing if <code>img</code> is null. | ||
| 261 | * @param xform Used to tranform the image before drawing. | ||
| 262 | * This can be null. | ||
| 263 | * @param bgcolor This color is drawn where the image has transparent | ||
| 264 | * pixels. If this parameter is null then the | ||
| 265 | * pixels already in the destination should show | ||
| 266 | * through. | ||
| 267 | * @param srcX With srcY this defines the upper-left corner | ||
| 268 | * of the portion of the image to be drawn. | ||
| 269 | * | ||
| 270 | * @param srcY With srcX this defines the upper-left corner | ||
| 271 | * of the portion of the image to be drawn. | ||
| 272 | * @param srcWidth The width of the portion of the image to | ||
| 273 | * be drawn. | ||
| 274 | * @param srcHeight The height of the portion of the image to | ||
| 275 | * be drawn. | ||
| 276 | * @param handlingTransparency if being recursively called to | ||
| 277 | * print opaque region of transparent image | ||
| 278 | */ | ||
| 279 | protected boolean drawImageToPlatform(Image image, AffineTransform xform, | ||
| 280 | Color bgcolor, | ||
| 281 | int srcX, int srcY, | ||
| 282 | int srcWidth, int srcHeight, | ||
| 283 | boolean handlingTransparency) { | ||
| 284 | |||
| 285 | BufferedImage img = getBufferedImage(image); | ||
| 286 | if (img == null) { | ||
| 287 | return true; | ||
| 288 | } | ||
| 289 | |||
| 290 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); | ||
| 291 | |||
| 292 | /* The full transform to be applied to the image is the | ||
| 293 | * caller's transform concatenated on to the transform | ||
| 294 | * from user space to device space. If the caller didn't | ||
| 295 | * supply a transform then we just act as if they passed | ||
| 296 | * in the identify transform. | ||
| 297 | */ | ||
| 298 | AffineTransform fullTransform = getTransform(); | ||
| 299 | if (xform == null) { | ||
| 300 | xform = new AffineTransform(); | ||
| 301 | } | ||
| 302 | fullTransform.concatenate(xform); | ||
| 303 | |||
| 304 | /* Split the full transform into a pair of | ||
| 305 | * transforms. The first transform holds effects | ||
| 306 | * such as rotation and shearing. The second transform | ||
| 307 | * is setup to hold only the scaling effects. | ||
| 308 | * These transforms are created such that a point, | ||
| 309 | * p, in user space, when transformed by 'fullTransform' | ||
| 310 | * lands in the same place as when it is transformed | ||
| 311 | * by 'rotTransform' and then 'scaleTransform'. | ||
| 312 | * | ||
| 313 | * The entire image transformation is not in Java in order | ||
| 314 | * to minimize the amount of memory needed in the VM. By | ||
| 315 | * dividing the transform in two, we rotate and shear | ||
| 316 | * the source image in its own space and only go to | ||
| 317 | * the, usually, larger, device space when we ask | ||
| 318 | * PostScript to perform the final scaling. | ||
| 319 | */ | ||
| 320 | double[] fullMatrix = new double[6]; | ||
| 321 | fullTransform.getMatrix(fullMatrix); | ||
| 322 | |||
| 323 | /* Calculate the amount of scaling in the x | ||
| 324 | * and y directions. This scaling is computed by | ||
| 325 | * transforming a unit vector along each axis | ||
| 326 | * and computing the resulting magnitude. | ||
| 327 | * The computed values 'scaleX' and 'scaleY' | ||
| 328 | * represent the amount of scaling PS will be asked | ||
| 329 | * to perform. | ||
| 330 | * Clamp this to the device scale for better quality printing. | ||
| 331 | */ | ||
| 332 | Point2D.Float unitVectorX = new Point2D.Float(1, 0); | ||
| 333 | Point2D.Float unitVectorY = new Point2D.Float(0, 1); | ||
| 334 | fullTransform.deltaTransform(unitVectorX, unitVectorX); | ||
| 335 | fullTransform.deltaTransform(unitVectorY, unitVectorY); | ||
| 336 | |||
| 337 | Point2D.Float origin = new Point2D.Float(0, 0); | ||
| 338 | double scaleX = unitVectorX.distance(origin); | ||
| 339 | double scaleY = unitVectorY.distance(origin); | ||
| 340 | |||
| 341 | double devResX = psPrinterJob.getXRes(); | ||
| 342 | double devResY = psPrinterJob.getYRes(); | ||
| 343 | double devScaleX = devResX / DEFAULT_USER_RES; | ||
| 344 | double devScaleY = devResY / DEFAULT_USER_RES; | ||
| 345 | |||
| 346 | /* check if rotated or sheared */ | ||
| 347 | int transformType = fullTransform.getType(); | ||
| 348 | boolean clampScale = ((transformType & | ||
| 349 | (AffineTransform.TYPE_GENERAL_ROTATION | | ||
| 350 | AffineTransform.TYPE_GENERAL_TRANSFORM)) != 0); | ||
| 351 | if (clampScale) { | ||
| 352 | if (scaleX > devScaleX) scaleX = devScaleX; | ||
| 353 | if (scaleY > devScaleY) scaleY = devScaleY; | ||
| 354 | } | ||
| 355 | |||
| 356 | /* We do not need to draw anything if either scaling | ||
| 357 | * factor is zero. | ||
| 358 | */ | ||
| 359 | if (scaleX != 0 && scaleY != 0) { | ||
| 360 | |||
| 361 | /* Here's the transformation we will do with Java2D, | ||
| 362 | */ | ||
| 363 | AffineTransform rotTransform = new AffineTransform( | ||
| 364 | fullMatrix[0] / scaleX, //m00 | ||
| 365 | fullMatrix[1] / scaleY, //m10 | ||
| 366 | fullMatrix[2] / scaleX, //m01 | ||
| 367 | fullMatrix[3] / scaleY, //m11 | ||
| 368 | fullMatrix[4] / scaleX, //m02 | ||
| 369 | fullMatrix[5] / scaleY); //m12 | ||
| 370 | |||
| 371 | /* The scale transform is not used directly: we instead | ||
| 372 | * directly multiply by scaleX and scaleY. | ||
| 373 | * | ||
| 374 | * Conceptually here is what the scaleTransform is: | ||
| 375 | * | ||
| 376 | * AffineTransform scaleTransform = new AffineTransform( | ||
| 377 | * scaleX, //m00 | ||
| 378 | * 0, //m10 | ||
| 379 | * 0, //m01 | ||
| 380 | * scaleY, //m11 | ||
| 381 | * 0, //m02 | ||
| 382 | * 0); //m12 | ||
| 383 | */ | ||
| 384 | |||
| 385 | /* Convert the image source's rectangle into the rotated | ||
| 386 | * and sheared space. Once there, we calculate a rectangle | ||
| 387 | * that encloses the resulting shape. It is this rectangle | ||
| 388 | * which defines the size of the BufferedImage we need to | ||
| 389 | * create to hold the transformed image. | ||
| 390 | */ | ||
| 391 | Rectangle2D.Float srcRect = new Rectangle2D.Float(srcX, srcY, | ||
| 392 | srcWidth, | ||
| 393 | srcHeight); | ||
| 394 | |||
| 395 | Shape rotShape = rotTransform.createTransformedShape(srcRect); | ||
| 396 | Rectangle2D rotBounds = rotShape.getBounds2D(); | ||
| 397 | |||
| 398 | /* add a fudge factor as some fp precision problems have | ||
| 399 | * been observed which caused pixels to be rounded down and | ||
| 400 | * out of the image. | ||
| 401 | */ | ||
| 402 | rotBounds.setRect(rotBounds.getX(), rotBounds.getY(), | ||
| 403 | rotBounds.getWidth()+0.001, | ||
| 404 | rotBounds.getHeight()+0.001); | ||
| 405 | |||
| 406 | int boundsWidth = (int) rotBounds.getWidth(); | ||
| 407 | int boundsHeight = (int) rotBounds.getHeight(); | ||
| 408 | |||
| 409 | if (boundsWidth > 0 && boundsHeight > 0) { | ||
| 410 | |||
| 411 | |||
| 412 | /* If the image has transparent or semi-transparent | ||
| 413 | * pixels then we'll have the application re-render | ||
| 414 | * the portion of the page covered by the image. | ||
| 415 | * This will be done in a later call to print using the | ||
| 416 | * saved graphics state. | ||
| 417 | * However several special cases can be handled otherwise: | ||
| 418 | * - bitmask transparency with a solid background colour | ||
| 419 | * - images which have transparency color models but no | ||
| 420 | * transparent pixels | ||
| 421 | * - images with bitmask transparency and an IndexColorModel | ||
| 422 | * (the common transparent GIF case) can be handled by | ||
| 423 | * rendering just the opaque pixels. | ||
| 424 | */ | ||
| 425 | boolean drawOpaque = true; | ||
| 426 | if (!handlingTransparency && hasTransparentPixels(img)) { | ||
| 427 | drawOpaque = false; | ||
| 428 | if (isBitmaskTransparency(img)) { | ||
| 429 | if (bgcolor == null) { | ||
| 430 | if (drawBitmaskImage(img, xform, bgcolor, | ||
| 431 | srcX, srcY, | ||
| 432 | srcWidth, srcHeight)) { | ||
| 433 | // image drawn, just return. | ||
| 434 | return true; | ||
| 435 | } | ||
| 436 | } else if (bgcolor.getTransparency() | ||
| 437 | == Transparency.OPAQUE) { | ||
| 438 | drawOpaque = true; | ||
| 439 | } | ||
| 440 | } | ||
| 441 | if (!canDoRedraws()) { | ||
| 442 | drawOpaque = true; | ||
| 443 | } | ||
| 444 | } else { | ||
| 445 | // if there's no transparent pixels there's no need | ||
| 446 | // for a background colour. This can avoid edge artifacts | ||
| 447 | // in rotation cases. | ||
| 448 | bgcolor = null; | ||
| 449 | } | ||
| 450 | // if src region extends beyond the image, the "opaque" path | ||
| 451 | // may blit b/g colour (including white) where it shoudn't. | ||
| 452 | if ((srcX+srcWidth > img.getWidth(null) || | ||
| 453 | srcY+srcHeight > img.getHeight(null)) | ||
| 454 | && canDoRedraws()) { | ||
| 455 | drawOpaque = false; | ||
| 456 | } | ||
| 457 | if (drawOpaque == false) { | ||
| 458 | |||
| 459 | fullTransform.getMatrix(fullMatrix); | ||
| 460 | AffineTransform tx = | ||
| 461 | new AffineTransform( | ||
| 462 | fullMatrix[0] / devScaleX, //m00 | ||
| 463 | fullMatrix[1] / devScaleY, //m10 | ||
| 464 | fullMatrix[2] / devScaleX, //m01 | ||
| 465 | fullMatrix[3] / devScaleY, //m11 | ||
| 466 | fullMatrix[4] / devScaleX, //m02 | ||
| 467 | fullMatrix[5] / devScaleY); //m12 | ||
| 468 | |||
| 469 | Rectangle2D.Float rect = | ||
| 470 | new Rectangle2D.Float(srcX, srcY, srcWidth, srcHeight); | ||
| 471 | |||
| 472 | Shape shape = fullTransform.createTransformedShape(rect); | ||
| 473 | // Region isn't user space because its potentially | ||
| 474 | // been rotated for landscape. | ||
| 475 | Rectangle2D region = shape.getBounds2D(); | ||
| 476 | |||
| 477 | region.setRect(region.getX(), region.getY(), | ||
| 478 | region.getWidth()+0.001, | ||
| 479 | region.getHeight()+0.001); | ||
| 480 | |||
| 481 | // Try to limit the amount of memory used to 8Mb, so | ||
| 482 | // if at device resolution this exceeds a certain | ||
| 483 | // image size then scale down the region to fit in | ||
| 484 | // that memory, but never to less than 72 dpi. | ||
| 485 | |||
| 486 | int w = (int)region.getWidth(); | ||
| 487 | int h = (int)region.getHeight(); | ||
| 488 | int nbytes = w * h * 3; | ||
| 489 | int maxBytes = 8 * 1024 * 1024; | ||
| 490 | double origDpi = (devResX < devResY) ? devResX : devResY; | ||
| 491 | int dpi = (int)origDpi; | ||
| 492 | double scaleFactor = 1; | ||
| 493 | |||
| 494 | double maxSFX = w/(double)boundsWidth; | ||
| 495 | double maxSFY = h/(double)boundsHeight; | ||
| 496 | double maxSF = (maxSFX > maxSFY) ? maxSFY : maxSFX; | ||
| 497 | int minDpi = (int)(dpi/maxSF); | ||
| 498 | if (minDpi < DEFAULT_USER_RES) minDpi = DEFAULT_USER_RES; | ||
| 499 | |||
| 500 | while (nbytes > maxBytes && dpi > minDpi) { | ||
| 501 | scaleFactor *= 2; | ||
| 502 | dpi /= 2; | ||
| 503 | nbytes /= 4; | ||
| 504 | } | ||
| 505 | if (dpi < minDpi) { | ||
| 506 | scaleFactor = (origDpi / minDpi); | ||
| 507 | } | ||
| 508 | |||
| 509 | region.setRect(region.getX()/scaleFactor, | ||
| 510 | region.getY()/scaleFactor, | ||
| 511 | region.getWidth()/scaleFactor, | ||
| 512 | region.getHeight()/scaleFactor); | ||
| 513 | |||
| 514 | /* | ||
| 515 | * We need to have the clip as part of the saved state, | ||
| 516 | * either directly, or all the components that are | ||
| 517 | * needed to reconstitute it (image source area, | ||
| 518 | * image transform and current graphics transform). | ||
| 519 | * The clip is described in user space, so we need to | ||
| 520 | * save the current graphics transform anyway so just | ||
| 521 | * save these two. | ||
| 522 | */ | ||
| 523 | psPrinterJob.saveState(getTransform(), getClip(), | ||
| 524 | region, scaleFactor, scaleFactor); | ||
| 525 | return true; | ||
| 526 | |||
| 527 | /* The image can be rendered directly by PS so we | ||
| 528 | * copy it into a BufferedImage (this takes care of | ||
| 529 | * ColorSpace and BufferedImageOp issues) and then | ||
| 530 | * send that to PS. | ||
| 531 | */ | ||
| 532 | } else { | ||
| 533 | |||
| 534 | /* Create a buffered image big enough to hold the portion | ||
| 535 | * of the source image being printed. | ||
| 536 | */ | ||
| 537 | BufferedImage deepImage = new BufferedImage( | ||
| 538 | (int) rotBounds.getWidth(), | ||
| 539 | (int) rotBounds.getHeight(), | ||
| 540 | BufferedImage.TYPE_3BYTE_BGR); | ||
| 541 | |||
| 542 | /* Setup a Graphics2D on to the BufferedImage so that the | ||
| 543 | * source image when copied, lands within the image buffer. | ||
| 544 | */ | ||
| 545 | Graphics2D imageGraphics = deepImage.createGraphics(); | ||
| 546 | imageGraphics.clipRect(0, 0, | ||
| 547 | deepImage.getWidth(), | ||
| 548 | deepImage.getHeight()); | ||
| 549 | |||
| 550 | imageGraphics.translate(-rotBounds.getX(), | ||
| 551 | -rotBounds.getY()); | ||
| 552 | imageGraphics.transform(rotTransform); | ||
| 553 | |||
| 554 | /* Fill the BufferedImage either with the caller supplied | ||
| 555 | * color, 'bgColor' or, if null, with white. | ||
| 556 | */ | ||
| 557 | if (bgcolor == null) { | ||
| 558 | bgcolor = Color.white; | ||
| 559 | } | ||
| 560 | |||
| 561 | /* REMIND: no need to use scaling here. */ | ||
| 562 | imageGraphics.drawImage(img, | ||
| 563 | srcX, srcY, | ||
| 564 | srcX + srcWidth, srcY + srcHeight, | ||
| 565 | srcX, srcY, | ||
| 566 | srcX + srcWidth, srcY + srcHeight, | ||
| 567 | bgcolor, null); | ||
| 568 | |||
| 569 | /* In PSPrinterJob images are printed in device space | ||
| 570 | * and therefore we need to set a device space clip. | ||
| 571 | * FIX: this is an overly tight coupling of these | ||
| 572 | * two classes. | ||
| 573 | * The temporary clip set needs to be an intersection | ||
| 574 | * with the previous user clip. | ||
| 575 | * REMIND: two xfms may lose accuracy in clip path. | ||
| 576 | */ | ||
| 577 | Shape holdClip = getClip(); | ||
| 578 | Shape oldClip = | ||
| 579 | getTransform().createTransformedShape(holdClip); | ||
| 580 | AffineTransform sat = AffineTransform.getScaleInstance( | ||
| 581 | scaleX, scaleY); | ||
| 582 | Shape imgClip = sat.createTransformedShape(rotShape); | ||
| 583 | Area imgArea = new Area(imgClip); | ||
| 584 | Area oldArea = new Area(oldClip); | ||
| 585 | imgArea.intersect(oldArea); | ||
| 586 | psPrinterJob.setClip(imgArea); | ||
| 587 | |||
| 588 | /* Scale the bounding rectangle by the scale transform. | ||
| 589 | * Because the scaling transform has only x and y | ||
| 590 | * scaling components it is equivalent to multiply | ||
| 591 | * the x components of the bounding rectangle by | ||
| 592 | * the x scaling factor and to multiply the y components | ||
| 593 | * by the y scaling factor. | ||
| 594 | */ | ||
| 595 | Rectangle2D.Float scaledBounds | ||
| 596 | = new Rectangle2D.Float( | ||
| 597 | (float) (rotBounds.getX() * scaleX), | ||
| 598 | (float) (rotBounds.getY() * scaleY), | ||
| 599 | (float) (rotBounds.getWidth() * scaleX), | ||
| 600 | (float) (rotBounds.getHeight() * scaleY)); | ||
| 601 | |||
| 602 | |||
| 603 | /* Pull the raster data from the buffered image | ||
| 604 | * and pass it along to PS. | ||
| 605 | */ | ||
| 606 | ByteComponentRaster tile = | ||
| 607 | (ByteComponentRaster)deepImage.getRaster(); | ||
| 608 | |||
| 609 | psPrinterJob.drawImageBGR(tile.getDataStorage(), | ||
| 610 | scaledBounds.x, scaledBounds.y, | ||
| 611 | (float)Math.rint(scaledBounds.width+0.5), | ||
| 612 | (float)Math.rint(scaledBounds.height+0.5), | ||
| 613 | 0f, 0f, | ||
| 614 | deepImage.getWidth(), deepImage.getHeight(), | ||
| 615 | deepImage.getWidth(), deepImage.getHeight()); | ||
| 616 | |||
| 617 | /* Reset the device clip to match user clip */ | ||
| 618 | psPrinterJob.setClip( | ||
| 619 | getTransform().createTransformedShape(holdClip)); | ||
| 620 | |||
| 621 | |||
| 622 | imageGraphics.dispose(); | ||
| 623 | } | ||
| 624 | |||
| 625 | } | ||
| 626 | } | ||
| 627 | |||
| 628 | return true; | ||
| 629 | } | ||
| 630 | |||
| 631 | /** Redraw a rectanglular area using a proxy graphics | ||
| 632 | * To do this we need to know the rectangular area to redraw and | ||
| 633 | * the transform & clip in effect at the time of the original drawImage | ||
| 634 | * | ||
| 635 | */ | ||
| 636 | |||
| 637 | public void redrawRegion(Rectangle2D region, double scaleX, double scaleY, | ||
| 638 | Shape savedClip, AffineTransform savedTransform) | ||
| 639 | |||
| 640 | throws PrinterException { | ||
| 641 | |||
| 642 | PSPrinterJob psPrinterJob = (PSPrinterJob)getPrinterJob(); | ||
| 643 | Printable painter = getPrintable(); | ||
| 644 | PageFormat pageFormat = getPageFormat(); | ||
| 645 | int pageIndex = getPageIndex(); | ||
| 646 | |||
| 647 | /* Create a buffered image big enough to hold the portion | ||
| 648 | * of the source image being printed. | ||
| 649 | */ | ||
| 650 | BufferedImage deepImage = new BufferedImage( | ||
| 651 | (int) region.getWidth(), | ||
| 652 | (int) region.getHeight(), | ||
| 653 | BufferedImage.TYPE_3BYTE_BGR); | ||
| 654 | |||
| 655 | /* Get a graphics for the application to render into. | ||
| 656 | * We initialize the buffer to white in order to | ||
| 657 | * match the paper and then we shift the BufferedImage | ||
| 658 | * so that it covers the area on the page where the | ||
| 659 | * caller's Image will be drawn. | ||
| 660 | */ | ||
| 661 | Graphics2D g = deepImage.createGraphics(); | ||
| 662 | ProxyGraphics2D proxy = new ProxyGraphics2D(g, psPrinterJob); | ||
| 663 | proxy.setColor(Color.white); | ||
| 664 | proxy.fillRect(0, 0, deepImage.getWidth(), deepImage.getHeight()); | ||
| 665 | proxy.clipRect(0, 0, deepImage.getWidth(), deepImage.getHeight()); | ||
| 666 | |||
| 667 | proxy.translate(-region.getX(), -region.getY()); | ||
| 668 | |||
| 669 | /* Calculate the resolution of the source image. | ||
| 670 | */ | ||
| 671 | float sourceResX = (float)(psPrinterJob.getXRes() / scaleX); | ||
| 672 | float sourceResY = (float)(psPrinterJob.getYRes() / scaleY); | ||
| 673 | |||
| 674 | /* The application expects to see user space at 72 dpi. | ||
| 675 | * so change user space from image source resolution to | ||
| 676 | * 72 dpi. | ||
| 677 | */ | ||
| 678 | proxy.scale(sourceResX / DEFAULT_USER_RES, | ||
| 679 | sourceResY / DEFAULT_USER_RES); | ||
| 680 | proxy.translate( | ||
| 681 | -psPrinterJob.getPhysicalPrintableX(pageFormat.getPaper()) | ||
| 682 | / psPrinterJob.getXRes() * DEFAULT_USER_RES, | ||
| 683 | -psPrinterJob.getPhysicalPrintableY(pageFormat.getPaper()) | ||
| 684 | / psPrinterJob.getYRes() * DEFAULT_USER_RES); | ||
| 685 | /* NB User space now has to be at 72 dpi for this calc to be correct */ | ||
| 686 | proxy.transform(new AffineTransform(getPageFormat().getMatrix())); | ||
| 687 | |||
| 688 | proxy.setPaint(Color.black); | ||
| 689 | |||
| 690 | painter.print(proxy, pageFormat, pageIndex); | ||
| 691 | |||
| 692 | g.dispose(); | ||
| 693 | |||
| 694 | /* In PSPrinterJob images are printed in device space | ||
| 695 | * and therefore we need to set a device space clip. | ||
| 696 | */ | ||
| 697 | psPrinterJob.setClip(savedTransform.createTransformedShape(savedClip)); | ||
| 698 | |||
| 699 | |||
| 700 | /* Scale the bounding rectangle by the scale transform. | ||
| 701 | * Because the scaling transform has only x and y | ||
| 702 | * scaling components it is equivalent to multiply | ||
| 703 | * the x components of the bounding rectangle by | ||
| 704 | * the x scaling factor and to multiply the y components | ||
| 705 | * by the y scaling factor. | ||
| 706 | */ | ||
| 707 | Rectangle2D.Float scaledBounds | ||
| 708 | = new Rectangle2D.Float( | ||
| 709 | (float) (region.getX() * scaleX), | ||
| 710 | (float) (region.getY() * scaleY), | ||
| 711 | (float) (region.getWidth() * scaleX), | ||
| 712 | (float) (region.getHeight() * scaleY)); | ||
| 713 | |||
| 714 | |||
| 715 | /* Pull the raster data from the buffered image | ||
| 716 | * and pass it along to PS. | ||
| 717 | */ | ||
| 718 | ByteComponentRaster tile = (ByteComponentRaster)deepImage.getRaster(); | ||
| 719 | |||
| 720 | psPrinterJob.drawImageBGR(tile.getDataStorage(), | ||
| 721 | scaledBounds.x, scaledBounds.y, | ||
| 722 | scaledBounds.width, | ||
| 723 | scaledBounds.height, | ||
| 724 | 0f, 0f, | ||
| 725 | deepImage.getWidth(), deepImage.getHeight(), | ||
| 726 | deepImage.getWidth(), deepImage.getHeight()); | ||
| 727 | |||
| 728 | |||
| 729 | } | ||
| 730 | |||
| 731 | |||
| 732 | /* | ||
| 733 | * Fill the path defined by <code>pathIter</code> | ||
| 734 | * with the specified color. | ||
| 735 | * The path is provided in current user space. | ||
| 736 | */ | ||
| 737 | protected void deviceFill(PathIterator pathIter, Color color) { | ||
| 738 | |||
| 739 | PSPrinterJob psPrinterJob = (PSPrinterJob) getPrinterJob(); | ||
| 740 | psPrinterJob.deviceFill(pathIter, color, getTransform(), getClip()); | ||
| 741 | } | ||
| 742 | |||
| 743 | /* | ||
| 744 | * Draw the bounding rectangle using path by calling draw() | ||
| 745 | * function and passing a rectangle shape. | ||
| 746 | */ | ||
| 747 | protected void deviceFrameRect(int x, int y, int width, int height, | ||
| 748 | Color color) { | ||
| 749 | |||
| 750 | draw(new Rectangle2D.Float(x, y, width, height)); | ||
| 751 | } | ||
| 752 | |||
| 753 | /* | ||
| 754 | * Draw a line using path by calling draw() function and passing | ||
| 755 | * a line shape. | ||
| 756 | */ | ||
| 757 | protected void deviceDrawLine(int xBegin, int yBegin, | ||
| 758 | int xEnd, int yEnd, Color color) { | ||
| 759 | |||
| 760 | draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd)); | ||
| 761 | } | ||
| 762 | |||
| 763 | /* | ||
| 764 | * Fill the rectangle with the specified color by calling fill(). | ||
| 765 | */ | ||
| 766 | protected void deviceFillRect(int x, int y, int width, int height, | ||
| 767 | Color color) { | ||
| 768 | fill(new Rectangle2D.Float(x, y, width, height)); | ||
| 769 | } | ||
| 770 | |||
| 771 | |||
| 772 | /* | ||
| 773 | * This method should not be invoked by PSPathGraphics. | ||
| 774 | * FIX: Rework PathGraphics so that this method is | ||
| 775 | * not an abstract method there. | ||
| 776 | */ | ||
| 777 | protected void deviceClip(PathIterator pathIter) { | ||
| 778 | } | ||
| 779 | |||
| 780 | } | ||