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- /*
- * 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 final class ImageRasterPattern {
-
- private 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;
- }
- }
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