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Diffstat (limited to 'src/java/org/apache/fop/afp/ioca/ImageRasterPattern.java')
| -rw-r--r-- | src/java/org/apache/fop/afp/ioca/ImageRasterPattern.java | 759 |
1 files changed, 759 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/afp/ioca/ImageRasterPattern.java b/src/java/org/apache/fop/afp/ioca/ImageRasterPattern.java new file mode 100644 index 000000000..789eeb950 --- /dev/null +++ b/src/java/org/apache/fop/afp/ioca/ImageRasterPattern.java @@ -0,0 +1,759 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* $Id$ */ + +package org.apache.fop.afp.ioca; + +/** + * Raster data is a grid of cells covering an area of interest. + * Each pixel, the smallest unit of information in the grid, displays + * a unique attribute. This static class generates raster data for different + * shades of grey (betweeen 0 and 16) the lower the number being the + * darker the shade. The image data dimensions are 64 x 8. + */ +public class ImageRasterPattern { + + /** + * The Raster Pattern for Greyscale 16 + */ + private static final byte[] GREYSCALE16 = new byte[] { + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + }; + + /** + * The Raster Pattern for Greyscale 15 + */ + private static final byte[] GREYSCALE15 = new byte[] { + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + }; + + /** + * The Raster Pattern for Greyscale 14 + */ + private static final byte[] GREYSCALE14 = new byte[] { + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + }; + + + /** + * The Raster Pattern for Greyscale 13 + */ + private static final byte[] GREYSCALE13 = new byte[] { + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + /** + * The Raster Pattern for Greyscale 12 + */ + private static final byte[] GREYSCALE12 = new byte[] { + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + 0x00, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + /** + * The Raster Pattern for Greyscale 11 + */ + private static final byte[] GREYSCALE11 = new byte[] { + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + /** + * The Raster Pattern for Greyscale 10 + */ + private static final byte[] GREYSCALE10 = new byte[] { + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + 0x44, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + /** + * The Raster Pattern for Greyscale 9 + */ + private static final byte[] GREYSCALE09 = new byte[] { + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + 0x11, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + /** + * The Raster Pattern for Greyscale 8 + */ + private static final byte[] GREYSCALE08 = new byte[] { + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + }; + + + /** + * The Raster Pattern for Greyscale 7 + */ + private static final byte[] GREYSCALE07 = new byte[] { + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + }; + + + /** + * The Raster Pattern for Greyscale 6 + */ + private static final byte[] GREYSCALE06 = new byte[] { + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + }; + + /** + * The Raster Pattern for Greyscale 5 + */ + private static final byte[] GREYSCALE05 = new byte[] { + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xEE, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + }; + + + /** + * The Raster Pattern for Greyscale 4 + */ + private static final byte[] GREYSCALE04 = new byte[] { + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xAA, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + }; + + /** + * The Raster Pattern for Greyscale 3 + */ + private static final byte[] GREYSCALE03 = new byte[] { + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + 0x55, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xBB, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + }; + + /** + * The Raster Pattern for Greyscale 2 + */ + private static final byte[] GREYSCALE02 = new byte[] { + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xDD, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + }; + + + /** + * The Raster Pattern for Greyscale 1 + */ + private static final byte[] GREYSCALE01 = new byte[] { + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + 0x77, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + }; + + + /** + * The Raster Pattern for Greyscale 00 + */ + private static final byte[] GREYSCALE00 = new byte[] { + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + (byte)0xFF, + }; + + /** + * Static method to return the raster image data for the + * grey scale specified. The scale should be between 0 (darkest) + * and 16 (lightest). + * @param greyscale The grey scale value (0 - 16) + * @return the raster data byte array for the given greyscale value + */ + public static byte[] getRasterData(int greyscale) { + + int repeat = 16; + + byte[] greypattern = new byte[32]; + byte[] rasterdata = new byte[32 * repeat]; + + switch (greyscale) { + case 0: + System.arraycopy(GREYSCALE00, 0, greypattern, 0, 32); + break; + case 1: + System.arraycopy(GREYSCALE01, 0, greypattern, 0, 32); + break; + case 2: + System.arraycopy(GREYSCALE02, 0, greypattern, 0, 32); + break; + case 3: + System.arraycopy(GREYSCALE03, 0, greypattern, 0, 32); + break; + case 4: + System.arraycopy(GREYSCALE04, 0, greypattern, 0, 32); + break; + case 5: + System.arraycopy(GREYSCALE05, 0, greypattern, 0, 32); + break; + case 6: + System.arraycopy(GREYSCALE06, 0, greypattern, 0, 32); + break; + case 7: + System.arraycopy(GREYSCALE07, 0, greypattern, 0, 32); + break; + case 8: + System.arraycopy(GREYSCALE08, 0, greypattern, 0, 32); + break; + case 9: + System.arraycopy(GREYSCALE09, 0, greypattern, 0, 32); + break; + case 10: + System.arraycopy(GREYSCALE10, 0, greypattern, 0, 32); + break; + case 11: + System.arraycopy(GREYSCALE11, 0, greypattern, 0, 32); + break; + case 12: + System.arraycopy(GREYSCALE12, 0, greypattern, 0, 32); + break; + case 13: + System.arraycopy(GREYSCALE13, 0, greypattern, 0, 32); + break; + case 14: + System.arraycopy(GREYSCALE14, 0, greypattern, 0, 32); + break; + case 15: + System.arraycopy(GREYSCALE15, 0, greypattern, 0, 32); + break; + case 16: + System.arraycopy(GREYSCALE16, 0, greypattern, 0, 32); + break; + default : + System.arraycopy(GREYSCALE00, 0, greypattern, 0, 32); + break; + } + + for (int i = 0; i < repeat; i++) { + System.arraycopy(greypattern, 0, rasterdata, i * 32, 32); + } + return rasterdata; + } +} |