src/share/classes/com/sun/imageio/plugins/jpeg/JPEGImageWriter.java

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 301     }
 302 
 303     public int getNumThumbnailsSupported(ImageTypeSpecifier imageType,
 304                                          ImageWriteParam param,
 305                                          IIOMetadata streamMetadata,
 306                                          IIOMetadata imageMetadata) {
 307         if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
 308             return Integer.MAX_VALUE;
 309         }
 310         return 0;
 311     }
 312 
 313     static final Dimension [] preferredThumbSizes = {new Dimension(1, 1),
 314                                                      new Dimension(255, 255)};
 315 
 316     public Dimension[] getPreferredThumbnailSizes(ImageTypeSpecifier imageType,
 317                                                   ImageWriteParam param,
 318                                                   IIOMetadata streamMetadata,
 319                                                   IIOMetadata imageMetadata) {
 320         if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
 321             return (Dimension [])preferredThumbSizes.clone();
 322         }
 323         return null;
 324     }
 325 
 326     private boolean jfifOK(ImageTypeSpecifier imageType,
 327                            ImageWriteParam param,
 328                            IIOMetadata streamMetadata,
 329                            IIOMetadata imageMetadata) {
 330         // If the image type and metadata are JFIF compatible, return true
 331         if ((imageType != null) &&
 332             (!JPEG.isJFIFcompliant(imageType, true))) {
 333             return false;
 334         }
 335         if (imageMetadata != null) {
 336             JPEGMetadata metadata = null;
 337             if (imageMetadata instanceof JPEGMetadata) {
 338                 metadata = (JPEGMetadata) imageMetadata;
 339             } else {
 340                 metadata = (JPEGMetadata)convertImageMetadata(imageMetadata,
 341                                                               imageType,




 301     }
 302 
 303     public int getNumThumbnailsSupported(ImageTypeSpecifier imageType,
 304                                          ImageWriteParam param,
 305                                          IIOMetadata streamMetadata,
 306                                          IIOMetadata imageMetadata) {
 307         if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
 308             return Integer.MAX_VALUE;
 309         }
 310         return 0;
 311     }
 312 
 313     static final Dimension [] preferredThumbSizes = {new Dimension(1, 1),
 314                                                      new Dimension(255, 255)};
 315 
 316     public Dimension[] getPreferredThumbnailSizes(ImageTypeSpecifier imageType,
 317                                                   ImageWriteParam param,
 318                                                   IIOMetadata streamMetadata,
 319                                                   IIOMetadata imageMetadata) {
 320         if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
 321             return preferredThumbSizes.clone();
 322         }
 323         return null;
 324     }
 325 
 326     private boolean jfifOK(ImageTypeSpecifier imageType,
 327                            ImageWriteParam param,
 328                            IIOMetadata streamMetadata,
 329                            IIOMetadata imageMetadata) {
 330         // If the image type and metadata are JFIF compatible, return true
 331         if ((imageType != null) &&
 332             (!JPEG.isJFIFcompliant(imageType, true))) {
 333             return false;
 334         }
 335         if (imageMetadata != null) {
 336             JPEGMetadata metadata = null;
 337             if (imageMetadata instanceof JPEGMetadata) {
 338                 metadata = (JPEGMetadata) imageMetadata;
 339             } else {
 340                 metadata = (JPEGMetadata)convertImageMetadata(imageMetadata,
 341                                                               imageType,