Mercurial > hg > digilib-old
annotate servlet/src/digilib/image/ImageLoaderDocuImage.java @ 693:e06822e74ffd jquery
I need my Hertziana connection
| author | hertzhaft |
|---|---|
| date | Thu, 27 Jan 2011 00:38:36 +0100 |
| parents | fd2ef7e46119 |
| children | beeedf90cb81 |
| rev | line source |
|---|---|
| 1 | 1 /* ImageLoaderDocuImage -- Image class implementation using JDK 1.4 ImageLoader |
| 2 | |
| 279 | 3 Digital Image Library servlet components |
| 1 | 4 |
| 279 | 5 Copyright (C) 2002, 2003 Robert Casties (robcast@mail.berlios.de) |
| 1 | 6 |
| 279 | 7 This program is free software; you can redistribute it and/or modify it |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2 of the License, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 Please read license.txt for the full details. A copy of the GPL | |
| 13 may be found at http://www.gnu.org/copyleft/lgpl.html | |
| 1 | 14 |
| 279 | 15 You should have received a copy of the GNU General Public License |
| 16 along with this program; if not, write to the Free Software | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 */ | |
| 1 | 19 |
| 20 package digilib.image; | |
| 21 | |
| 496 | 22 import java.awt.Image; |
| 85 | 23 import java.awt.Rectangle; |
| 207 | 24 import java.awt.RenderingHints; |
| 73 | 25 import java.awt.geom.AffineTransform; |
| 101 | 26 import java.awt.geom.Rectangle2D; |
| 73 | 27 import java.awt.image.AffineTransformOp; |
| 28 import java.awt.image.BufferedImage; | |
| 144 | 29 import java.awt.image.ConvolveOp; |
| 30 import java.awt.image.Kernel; | |
| 85 | 31 import java.awt.image.RescaleOp; |
| 73 | 32 import java.io.File; |
| 33 import java.io.IOException; | |
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34 import java.io.OutputStream; |
| 89 | 35 import java.io.RandomAccessFile; |
| 464 | 36 import java.util.Arrays; |
| 85 | 37 import java.util.Iterator; |
| 1 | 38 |
| 352 | 39 import javax.imageio.IIOImage; |
| 73 | 40 import javax.imageio.ImageIO; |
| 85 | 41 import javax.imageio.ImageReadParam; |
| 42 import javax.imageio.ImageReader; | |
| 352 | 43 import javax.imageio.ImageWriteParam; |
| 44 import javax.imageio.ImageWriter; | |
| 220 | 45 import javax.imageio.stream.FileImageInputStream; |
| 85 | 46 import javax.imageio.stream.ImageInputStream; |
| 352 | 47 import javax.imageio.stream.ImageOutputStream; |
| 570 | 48 import javax.servlet.ServletException; |
| 1 | 49 |
| 207 | 50 import digilib.io.FileOpException; |
| 464 | 51 import digilib.io.FileOps; |
| 159 | 52 import digilib.io.ImageFile; |
| 464 | 53 import digilib.io.ImageFileset; |
| 1 | 54 |
| 73 | 55 /** Implementation of DocuImage using the ImageLoader API of Java 1.4 and Java2D. */ |
| 564 | 56 public class ImageLoaderDocuImage extends ImageInfoDocuImage { |
| 279 | 57 |
| 86 | 58 /** image object */ |
| 59 protected BufferedImage img; | |
| 570 | 60 |
| 86 | 61 /** interpolation type */ |
| 207 | 62 protected RenderingHints renderHint; |
| 279 | 63 |
| 86 | 64 /** ImageIO image reader */ |
| 65 protected ImageReader reader; | |
| 279 | 66 |
| 86 | 67 /** File that was read */ |
| 68 protected File imgFile; | |
| 85 | 69 |
| 70 /* loadSubimage is supported. */ | |
| 71 public boolean isSubimageSupported() { | |
| 72 return true; | |
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73 } |
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74 |
| 85 | 75 public void setQuality(int qual) { |
| 76 quality = qual; | |
| 207 | 77 renderHint = new RenderingHints(null); |
| 352 | 78 // hint.put(RenderingHints.KEY_ANTIALIASING, |
| 279 | 79 // RenderingHints.VALUE_ANTIALIAS_OFF); |
| 85 | 80 // setup interpolation quality |
| 81 if (qual > 0) { | |
| 181 | 82 logger.debug("quality q1"); |
| 279 | 83 renderHint.put(RenderingHints.KEY_INTERPOLATION, |
| 84 RenderingHints.VALUE_INTERPOLATION_BICUBIC); | |
| 85 | 85 } else { |
| 181 | 86 logger.debug("quality q0"); |
| 279 | 87 renderHint.put(RenderingHints.KEY_INTERPOLATION, |
| 88 RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR); | |
| 85 | 89 } |
| 90 } | |
| 86 | 91 |
| 570 | 92 /* returns the size of the current image */ |
| 93 public ImageSize getSize() { | |
| 94 ImageSize is = null; | |
| 95 // TODO: do we want to cache imageSize? | |
| 96 int h = 0; | |
| 97 int w = 0; | |
| 98 try { | |
| 99 if (img == null) { | |
| 100 // get size from ImageReader | |
| 101 h = reader.getHeight(0); | |
| 102 w = reader.getWidth(0); | |
| 103 } else { | |
| 104 // get size from image | |
| 105 h = img.getHeight(); | |
| 106 w = img.getWidth(); | |
| 107 } | |
| 108 is = new ImageSize(w, h); | |
| 109 } catch (IOException e) { | |
| 110 logger.debug("error in getSize:", e); | |
| 111 } | |
| 112 return is; | |
| 113 } | |
| 1 | 114 |
| 464 | 115 /* returns a list of supported image formats */ |
| 531 | 116 public Iterator<String> getSupportedFormats() { |
| 464 | 117 String[] formats = ImageIO.getReaderFormatNames(); |
| 118 return Arrays.asList(formats).iterator(); | |
| 119 } | |
| 120 | |
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121 /** Check image size and type and store in ImageFile f */ |
| 563 | 122 public ImageFile identify(ImageFile imageFile) throws IOException { |
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123 // try parent method first |
| 563 | 124 ImageFile imf = super.identify(imageFile); |
| 125 if (imf != null) { | |
| 126 return imf; | |
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127 } |
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128 // fileset to store the information |
| 563 | 129 ImageFileset imgfs = imageFile.getParent(); |
| 130 File f = imageFile.getFile(); | |
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131 if (f == null) { |
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132 throw new IOException("File not found!"); |
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133 } |
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134 logger.debug("identifying (ImageIO) " + f); |
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135 /* |
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136 * try ImageReader |
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137 */ |
| 564 | 138 if ((reader == null) || (imgFile != imageFile.getFile())) { |
| 139 getReader(imageFile); | |
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140 } |
| 564 | 141 ImageSize d = new ImageSize(reader.getWidth(0), reader.getHeight(0)); |
| 142 imageFile.setSize(d); | |
| 143 // String t = reader.getFormatName(); | |
| 144 String t = FileOps.mimeForFile(f); | |
| 145 imageFile.setMimetype(t); | |
| 146 // logger.debug(" format:"+t); | |
| 147 if (imgfs != null) { | |
| 148 imgfs.setAspect(d); | |
| 149 } | |
| 150 return imageFile; | |
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151 } |
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152 |
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153 /* load image file */ |
| 159 | 154 public void loadImage(ImageFile f) throws FileOpException { |
| 279 | 155 logger.debug("loadImage " + f.getFile()); |
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156 try { |
| 149 | 157 img = ImageIO.read(f.getFile()); |
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158 mimeType = f.getMimetype(); |
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159 } catch (IOException e) { |
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160 throw new FileOpException("Error reading image."); |
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161 } |
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162 } |
| 1 | 163 |
| 279 | 164 /** |
| 165 * Get an ImageReader for the image file. | |
| 166 * | |
| 167 * @return | |
| 168 */ | |
| 169 public ImageReader getReader(ImageFile f) throws IOException { | |
| 170 logger.debug("preloadImage " + f.getFile()); | |
| 148 | 171 if (reader != null) { |
| 207 | 172 logger.debug("Reader was not null!"); |
| 148 | 173 // clean up old reader |
| 207 | 174 dispose(); |
| 148 | 175 } |
| 149 | 176 RandomAccessFile rf = new RandomAccessFile(f.getFile(), "r"); |
| 220 | 177 ImageInputStream istream = new FileImageInputStream(rf); |
| 565 | 178 Iterator<ImageReader> readers; |
| 279 | 179 String mt = f.getMimetype(); |
| 565 | 180 if (mt == null) { |
| 181 logger.debug("No mime-type. Trying automagic."); | |
| 182 readers = ImageIO.getImageReaders(istream); | |
| 183 } else { | |
| 184 logger.debug("File type:" + mt); | |
| 185 readers = ImageIO.getImageReadersByMIMEType(mt); | |
| 186 } | |
| 279 | 187 if (!readers.hasNext()) { |
| 564 | 188 rf.close(); |
| 565 | 189 throw new FileOpException("Can't find Reader to load File!"); |
| 279 | 190 } |
| 531 | 191 reader = readers.next(); |
| 149 | 192 /* are there more readers? */ |
| 207 | 193 logger.debug("ImageIO: this reader: " + reader.getClass()); |
| 564 | 194 /* while (readers.hasNext()) { |
| 207 | 195 logger.debug("ImageIO: next reader: " + readers.next().getClass()); |
| 564 | 196 } */ |
| 89 | 197 reader.setInput(istream); |
| 149 | 198 imgFile = f.getFile(); |
| 279 | 199 return reader; |
| 85 | 200 } |
| 201 | |
| 202 /* Load an image file into the Object. */ | |
| 159 | 203 public void loadSubimage(ImageFile f, Rectangle region, int prescale) |
| 279 | 204 throws FileOpException { |
| 207 | 205 logger.debug("loadSubimage"); |
| 85 | 206 try { |
| 149 | 207 if ((reader == null) || (imgFile != f.getFile())) { |
| 279 | 208 getReader(f); |
| 85 | 209 } |
| 210 // set up reader parameters | |
| 211 ImageReadParam readParam = reader.getDefaultReadParam(); | |
| 212 readParam.setSourceRegion(region); | |
| 220 | 213 if (prescale > 1) { |
| 214 readParam.setSourceSubsampling(prescale, prescale, 0, 0); | |
| 215 } | |
| 85 | 216 // read image |
| 207 | 217 logger.debug("loading.."); |
| 85 | 218 img = reader.read(0, readParam); |
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219 mimeType = f.getMimetype(); |
| 207 | 220 logger.debug("loaded"); |
| 85 | 221 } catch (IOException e) { |
| 222 throw new FileOpException("Unable to load File!"); | |
| 223 } | |
| 224 } | |
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225 |
| 86 | 226 /* write image of type mt to Stream */ |
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227 public void writeImage(String mt, OutputStream ostream) |
| 570 | 228 throws ImageOpException, ServletException { |
| 207 | 229 logger.debug("writeImage"); |
| 353 | 230 // setup output |
| 231 ImageWriter writer = null; | |
| 232 ImageOutputStream imgout = null; | |
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233 try { |
| 353 | 234 imgout = ImageIO.createImageOutputStream(ostream); |
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235 if (mt == "image/jpeg") { |
| 352 | 236 /* |
| 237 * JPEG doesn't do transparency so we have to convert any RGBA | |
| 238 * image to RGB :-( *Java2D BUG* | |
| 239 */ | |
| 240 if (img.getColorModel().hasAlpha()) { | |
| 241 logger.debug("BARF: JPEG with transparency!!"); | |
| 242 int w = img.getWidth(); | |
| 243 int h = img.getHeight(); | |
| 244 // BufferedImage.TYPE_INT_RGB seems to be fastest (JDK1.4.1, | |
| 245 // OSX) | |
| 246 int destType = BufferedImage.TYPE_INT_RGB; | |
| 247 BufferedImage img2 = new BufferedImage(w, h, destType); | |
| 248 img2.createGraphics().drawImage(img, null, 0, 0); | |
| 249 img = img2; | |
| 250 } | |
| 251 writer = (ImageWriter) ImageIO.getImageWritersByFormatName( | |
| 252 "jpeg").next(); | |
| 253 if (writer == null) { | |
| 570 | 254 throw new ImageOpException("Unable to get JPEG writer"); |
| 352 | 255 } |
| 256 ImageWriteParam param = writer.getDefaultWriteParam(); | |
| 257 if (quality > 1) { | |
| 258 // change JPEG compression quality | |
| 353 | 259 param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT); |
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260 //logger.debug("JPEG qual before: " |
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261 // + Float.toString(param.getCompressionQuality())); |
| 352 | 262 param.setCompressionQuality(0.9f); |
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263 //logger.debug("JPEG qual now: " |
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264 // + Float.toString(param.getCompressionQuality())); |
| 352 | 265 } |
| 266 writer.setOutput(imgout); | |
| 267 // render output | |
| 268 logger.debug("writing"); | |
| 269 writer.write(null, new IIOImage(img, null, null), param); | |
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270 } else if (mt == "image/png") { |
| 352 | 271 // render output |
| 272 writer = (ImageWriter) ImageIO.getImageWritersByFormatName( | |
| 273 "png").next(); | |
| 274 if (writer == null) { | |
| 570 | 275 throw new ImageOpException("Unable to get PNG writer"); |
| 352 | 276 } |
| 277 writer.setOutput(imgout); | |
| 278 logger.debug("writing"); | |
| 279 writer.write(img); | |
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280 } else { |
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281 // unknown mime type |
| 570 | 282 throw new ImageOpException("Unknown mime type: " + mt); |
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283 } |
| 140 | 284 |
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285 } catch (IOException e) { |
| 570 | 286 logger.error("Error writing image:", e); |
| 287 throw new ServletException("Error writing image:", e); | |
| 353 | 288 } finally { |
| 289 // clean up | |
| 290 if (writer != null) { | |
| 291 writer.dispose(); | |
| 292 } | |
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293 } |
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294 } |
| 1 | 295 |
| 149 | 296 public void scale(double scale, double scaleY) throws ImageOpException { |
| 207 | 297 logger.debug("scale"); |
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298 /* for downscaling in high quality the image is blurred first */ |
| 144 | 299 if ((scale <= 0.5) && (quality > 1)) { |
| 300 int bl = (int) Math.floor(1 / scale); | |
| 301 blur(bl); | |
| 302 } | |
| 207 | 303 /* then scaled */ |
| 279 | 304 AffineTransformOp scaleOp = new AffineTransformOp(AffineTransform |
| 305 .getScaleInstance(scale, scale), renderHint); | |
| 144 | 306 BufferedImage scaledImg = null; |
| 565 | 307 /* enforce destination image type (*Java2D BUG*) |
| 220 | 308 int type = img.getType(); |
| 279 | 309 if ((quality > 0) && (type != 0)) { |
| 207 | 310 logger.debug("creating destination image"); |
| 144 | 311 Rectangle2D dstBounds = scaleOp.getBounds2D(img); |
| 279 | 312 scaledImg = new BufferedImage((int) dstBounds.getWidth(), |
| 313 (int) dstBounds.getHeight(), type); | |
| 565 | 314 } */ |
| 207 | 315 logger.debug("scaling..."); |
| 144 | 316 scaledImg = scaleOp.filter(img, scaledImg); |
| 207 | 317 if (scaledImg == null) { |
| 318 throw new ImageOpException("Unable to scale"); | |
| 319 } | |
| 352 | 320 // DEBUG |
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321 logger.debug("destination image type " + scaledImg.getType()); |
| 279 | 322 logger.debug("SCALE: " + scale + " ->" + scaledImg.getWidth() + "x" |
| 144 | 323 + scaledImg.getHeight()); |
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324 img = scaledImg; |
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325 } |
| 1 | 326 |
| 144 | 327 public void blur(int radius) throws ImageOpException { |
| 352 | 328 // DEBUG |
| 181 | 329 logger.debug("blur: " + radius); |
| 144 | 330 // minimum radius is 2 |
| 331 int klen = Math.max(radius, 2); | |
| 220 | 332 // FIXME: use constant kernels for most common sizes |
| 144 | 333 int ksize = klen * klen; |
| 334 // kernel is constant 1/k | |
| 335 float f = 1f / ksize; | |
| 336 float[] kern = new float[ksize]; | |
| 337 for (int i = 0; i < ksize; i++) { | |
| 338 kern[i] = f; | |
| 339 } | |
| 340 Kernel blur = new Kernel(klen, klen, kern); | |
| 341 // blur with convolve operation | |
| 279 | 342 ConvolveOp blurOp = new ConvolveOp(blur, ConvolveOp.EDGE_NO_OP, |
| 343 renderHint); | |
| 565 | 344 BufferedImage blurredImg = null; |
| 145 | 345 // blur needs explicit destination image type for color *Java2D BUG* |
| 346 if (img.getType() == BufferedImage.TYPE_3BYTE_BGR) { | |
| 565 | 347 logger.debug("blur: fixing destination image type"); |
| 279 | 348 blurredImg = new BufferedImage(img.getWidth(), img.getHeight(), img |
| 349 .getType()); | |
| 145 | 350 } |
| 351 blurredImg = blurOp.filter(img, blurredImg); | |
| 144 | 352 img = blurredImg; |
| 353 } | |
| 354 | |
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355 public void crop(int x_off, int y_off, int width, int height) |
| 279 | 356 throws ImageOpException { |
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357 // setup Crop |
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358 BufferedImage croppedImg = img.getSubimage(x_off, y_off, width, height); |
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359 if (croppedImg == null) { |
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360 throw new ImageOpException("Unable to crop"); |
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361 } |
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362 logger.debug("CROP:" + croppedImg.getWidth() + "x" |
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363 + croppedImg.getHeight()); |
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364 img = croppedImg; |
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365 } |
| 1 | 366 |
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367 public void enhance(float mult, float add) throws ImageOpException { |
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368 /* |
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369 * Only one constant should work regardless of the number of bands |
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370 * according to the JDK spec. Doesn't work on JDK 1.4 for OSX and Linux |
| 279 | 371 * (at least). RescaleOp scaleOp = new RescaleOp( (float)mult, |
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372 * (float)add, null); scaleOp.filter(img, img); |
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373 */ |
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374 |
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375 /* The number of constants must match the number of bands in the image. */ |
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376 int ncol = img.getColorModel().getNumComponents(); |
| 86 | 377 float[] dm = new float[ncol]; |
| 378 float[] da = new float[ncol]; | |
| 379 for (int i = 0; i < ncol; i++) { | |
| 380 dm[i] = (float) mult; | |
| 381 da[i] = (float) add; | |
| 85 | 382 } |
| 86 | 383 RescaleOp scaleOp = new RescaleOp(dm, da, null); |
| 85 | 384 scaleOp.filter(img, img); |
| 385 } | |
| 386 | |
| 279 | 387 public void enhanceRGB(float[] rgbm, float[] rgba) throws ImageOpException { |
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388 /* |
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389 * The number of constants must match the number of bands in the image. |
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390 * We do only 3 (RGB) bands. |
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391 */ |
| 86 | 392 int ncol = img.getColorModel().getNumColorComponents(); |
| 393 if ((ncol != 3) || (rgbm.length != 3) || (rgba.length != 3)) { | |
| 279 | 394 logger |
| 395 .debug("ERROR(enhance): unknown number of color bands or coefficients (" | |
| 396 + ncol + ")"); | |
| 86 | 397 return; |
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398 } |
| 279 | 399 RescaleOp scaleOp = new RescaleOp(rgbOrdered(rgbm), rgbOrdered(rgba), |
| 400 null); | |
| 86 | 401 scaleOp.filter(img, img); |
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402 } |
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403 |
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404 /** |
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405 * Ensures that the array f is in the right order to map the images RGB |
| 279 | 406 * components. (not shure what happens |
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407 */ |
| 86 | 408 public float[] rgbOrdered(float[] fa) { |
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409 /* |
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410 * TODO: this is UGLY, UGLY!! |
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411 */ |
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412 float[] fb; |
| 86 | 413 int t = img.getType(); |
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414 if (img.getColorModel().hasAlpha()) { |
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415 fb = new float[4]; |
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416 if ((t == BufferedImage.TYPE_INT_ARGB) |
| 279 | 417 || (t == BufferedImage.TYPE_INT_ARGB_PRE)) { |
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418 // RGB Type |
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419 fb[0] = fa[0]; |
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420 fb[1] = fa[1]; |
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421 fb[2] = fa[2]; |
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422 fb[3] = 1f; |
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423 } else { |
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424 // this isn't tested :-( |
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425 fb[0] = 1f; |
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426 fb[1] = fa[0]; |
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427 fb[2] = fa[1]; |
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428 fb[3] = fa[2]; |
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429 } |
| 86 | 430 } else { |
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431 fb = new float[3]; |
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432 if (t == BufferedImage.TYPE_3BYTE_BGR) { |
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433 // BGR Type (actually it looks like RBG...) |
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434 fb[0] = fa[0]; |
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435 fb[1] = fa[2]; |
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436 fb[2] = fa[1]; |
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437 } else { |
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438 fb[0] = fa[0]; |
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439 fb[1] = fa[1]; |
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440 fb[2] = fa[2]; |
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441 } |
| 86 | 442 } |
| 443 return fb; | |
| 85 | 444 } |
| 445 | |
| 140 | 446 public void rotate(double angle) throws ImageOpException { |
| 89 | 447 // setup rotation |
| 448 double rangle = Math.toRadians(angle); | |
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449 // create offset to make shure the rotated image has no negative |
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450 // coordinates |
| 101 | 451 double w = img.getWidth(); |
| 452 double h = img.getHeight(); | |
| 103 | 453 AffineTransform trafo = new AffineTransform(); |
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454 // center of rotation |
| 103 | 455 double x = (w / 2); |
| 456 double y = (h / 2); | |
| 101 | 457 trafo.rotate(rangle, x, y); |
| 103 | 458 // try rotation to see how far we're out of bounds |
| 207 | 459 AffineTransformOp rotOp = new AffineTransformOp(trafo, renderHint); |
| 103 | 460 Rectangle2D rotbounds = rotOp.getBounds2D(img); |
| 461 double xoff = rotbounds.getX(); | |
| 462 double yoff = rotbounds.getY(); | |
| 463 // move image back in line | |
| 565 | 464 trafo.preConcatenate(AffineTransform.getTranslateInstance(-xoff, -yoff)); |
| 101 | 465 // transform image |
| 207 | 466 rotOp = new AffineTransformOp(trafo, renderHint); |
| 89 | 467 BufferedImage rotImg = rotOp.filter(img, null); |
| 101 | 468 // calculate new bounding box |
| 352 | 469 // Rectangle2D bounds = rotOp.getBounds2D(img); |
| 103 | 470 img = rotImg; |
| 101 | 471 // crop new image (with self-made rounding) |
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472 /* |
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473 * img = rotImg.getSubimage( (int) (bounds.getX()+0.5), (int) |
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474 * (bounds.getY()+0.5), (int) (bounds.getWidth()+0.5), (int) |
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475 * (bounds.getHeight()+0.5)); |
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476 */ |
| 86 | 477 } |
| 85 | 478 |
| 89 | 479 public void mirror(double angle) throws ImageOpException { |
| 480 // setup mirror | |
| 481 double mx = 1; | |
| 482 double my = 1; | |
| 483 double tx = 0; | |
| 484 double ty = 0; | |
| 144 | 485 if (Math.abs(angle - 0) < epsilon) { // 0 degree |
| 89 | 486 mx = -1; |
| 487 tx = getWidth(); | |
| 144 | 488 } else if (Math.abs(angle - 90) < epsilon) { // 90 degree |
| 89 | 489 my = -1; |
| 490 ty = getHeight(); | |
| 144 | 491 } else if (Math.abs(angle - 180) < epsilon) { // 180 degree |
| 89 | 492 mx = -1; |
| 493 tx = getWidth(); | |
| 144 | 494 } else if (Math.abs(angle - 270) < epsilon) { // 270 degree |
| 89 | 495 my = -1; |
| 496 ty = getHeight(); | |
| 144 | 497 } else if (Math.abs(angle - 360) < epsilon) { // 360 degree |
| 89 | 498 mx = -1; |
| 499 tx = getWidth(); | |
| 500 } | |
| 279 | 501 AffineTransformOp mirOp = new AffineTransformOp(new AffineTransform(mx, |
| 502 0, 0, my, tx, ty), renderHint); | |
| 89 | 503 BufferedImage mirImg = mirOp.filter(img, null); |
| 504 img = mirImg; | |
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505 } |
| 86 | 506 |
| 279 | 507 /* |
| 508 * (non-Javadoc) | |
| 509 * | |
| 510 * @see java.lang.Object#finalize() | |
| 511 */ | |
| 148 | 512 protected void finalize() throws Throwable { |
| 207 | 513 dispose(); |
| 514 super.finalize(); | |
| 515 } | |
| 516 | |
| 517 public void dispose() { | |
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518 // we must dispose the ImageReader because it keeps the filehandle |
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519 // open! |
| 256 | 520 if (reader != null) { |
| 521 reader.dispose(); | |
| 522 reader = null; | |
| 523 } | |
| 148 | 524 img = null; |
| 525 } | |
| 526 | |
| 533 | 527 public Image getAwtImage(){ |
| 496 | 528 return (Image) img; |
| 529 } | |
| 530 | |
| 531 | |
| 1 | 532 } |