diff --git a/AUTHORS b/AUTHORS index 3ba22257a..86ee4db85 100644 --- a/AUTHORS +++ b/AUTHORS @@ -31,6 +31,7 @@ gcstang Hannes Erven hypest (Barcorama project) Isaac Potoczny-Jones +Jacob Haynes (Google) Jeff Breidenbach (Google) John Connolly (Bug Labs) Jonas Petersson (Prisjakt) diff --git a/NOTICE b/NOTICE new file mode 100644 index 000000000..f9d470850 --- /dev/null +++ b/NOTICE @@ -0,0 +1,11 @@ +-------------------------------------------------------------------------------- +NOTICES FOR BARCODE4J +-------------------------------------------------------------------------------- + +Barcode4J +Copyright 2002-2010 Jeremias Märki +Copyright 2005-2006 Dietmar Bürkle + +Portions of this software were contributed under section 5 of the +Apache License. Contributors are listed under: +http://barcode4j.sourceforge.net/contributors.html diff --git a/core/src/com/google/zxing/MultiFormatWriter.java b/core/src/com/google/zxing/MultiFormatWriter.java index 6a6a2f304..4909a93c9 100644 --- a/core/src/com/google/zxing/MultiFormatWriter.java +++ b/core/src/com/google/zxing/MultiFormatWriter.java @@ -23,6 +23,7 @@ import com.google.zxing.oned.EAN13Writer; import com.google.zxing.oned.EAN8Writer; import com.google.zxing.oned.ITFWriter; import com.google.zxing.oned.UPCAWriter; +import com.google.zxing.pdf417.encoder.PDF417Writer; import com.google.zxing.qrcode.QRCodeWriter; import java.util.Hashtable; @@ -59,6 +60,8 @@ public final class MultiFormatWriter implements Writer { writer = new Code128Writer(); } else if (format == BarcodeFormat.ITF) { writer = new ITFWriter(); + } else if (format == BarcodeFormat.PDF_417) { + writer = new PDF417Writer(); } else { throw new IllegalArgumentException("No encoder available for format " + format); } diff --git a/core/src/com/google/zxing/pdf417/encoder/BarcodeMatrix.java b/core/src/com/google/zxing/pdf417/encoder/BarcodeMatrix.java new file mode 100644 index 000000000..f1ce130b4 --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/BarcodeMatrix.java @@ -0,0 +1,78 @@ +/* + * Copyright 2011 ZXing authors + * + * Licensed 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. + */ + +package com.google.zxing.pdf417.encoder; + +/** + * Holds all of the information for a barcode in a format where it can be easily accessable + * + * @author Jacob Haynes + */ +final class BarcodeMatrix { + + private final BarcodeRow[] matrix; + private int currentRow; + private final int height; + private final int width; + + /** + * @param height the height of the matrix (Rows) + * @param width the width of the matrix (Cols) + */ + BarcodeMatrix(int height, int width) { + matrix = new BarcodeRow[height + 2]; + //Initializes the array to the correct width + for (int i = 0, matrixLength = matrix.length; i < matrixLength; i++) { + matrix[i] = new BarcodeRow((width + 4) * 17 + 1); + } + this.width = width * 17; + this.height = height + 2; + this.currentRow = 0; + } + + void set(int x, int y, byte value) { + matrix[y].set(x, value); + } + + void setMatrix(int x, int y, boolean black) { + set(x, y, (byte) (black ? 1 : 0)); + } + + void startRow() { + ++currentRow; + } + + BarcodeRow getCurrentRow() { + return matrix[currentRow]; + } + + byte[][] getMatrix() { + return getScaledMatrix(1, 1); + } + + byte[][] getScaledMatrix(int Scale) { + return getScaledMatrix(Scale, Scale); + } + + byte[][] getScaledMatrix(int xScale, int yScale) { + byte[][] matrixOut = new byte[height * yScale][width * xScale]; + int yMax = height * yScale; + for (int ii = 0; ii < yMax; ii++) { + matrixOut[yMax - ii - 1] = matrix[ii / yScale].getScaledRow(xScale); + } + return matrixOut; + } +} diff --git a/core/src/com/google/zxing/pdf417/encoder/BarcodeRow.java b/core/src/com/google/zxing/pdf417/encoder/BarcodeRow.java new file mode 100644 index 000000000..a5afa379d --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/BarcodeRow.java @@ -0,0 +1,85 @@ +/* + * Copyright 2011 ZXing authors + * + * Licensed 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. + */ + +package com.google.zxing.pdf417.encoder; + +/** + * @author Jacob Haynes + */ +final class BarcodeRow { + + private final byte[] row; + //A tacker for position in the bar + private int currentLocation; + + /** + * Creates a Barcode row of the width + * + * @param width + */ + BarcodeRow(int width) { + this.row = new byte[width]; + currentLocation = 0; + } + + /** + * Sets a specific location in the bar + * + * @param x The location in the bar + * @param value Black if true, white if false; + */ + void set(int x, byte value) { + row[x] = value; + } + + /** + * Sets a specific location in the bar + * + * @param x The location in the bar + * @param black Black if true, white if false; + */ + void set(int x, boolean black) { + row[x] = (byte) (black ? 1 : 0); + } + + /** + * @param black A boolean which is true if the bar black false if it is white + * @param width How many spots wide the bar is. + */ + void addBar(boolean black, int width) { + for (int ii = 0; ii < width; ii++) { + set(currentLocation++, black); + } + } + + byte[] getRow() { + return row; + } + + /** + * This function scales the row + * + * @param scale How much you want the image to be scaled, must be greater than or equal to 1. + * @return the scaled row + */ + byte[] getScaledRow(int scale) { + byte[] output = new byte[row.length * scale]; + for (int ii = 0; ii < row.length * scale; ii++) { + output[ii] = row[ii / scale]; + } + return output; + } +} diff --git a/core/src/com/google/zxing/pdf417/encoder/PDF417.java b/core/src/com/google/zxing/pdf417/encoder/PDF417.java new file mode 100644 index 000000000..a91e18005 --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/PDF417.java @@ -0,0 +1,748 @@ +/* + * Copyright 2006 Jeremias Maerki in part, and ZXing Authors in part + * + * Licensed 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. + */ + +/* + * This file has been modified from its original form in Barcode4J. + */ + +package com.google.zxing.pdf417.encoder; + +import com.google.zxing.WriterException; + +/** + * Top-level class for the logic part of the PDF417 implementation. + */ +final class PDF417 { + + /** + * The start pattern (17 bits) + */ + private static final int START_PATTERN = 0x1fea8; + /** + * The stop pattern (18 bits) + */ + private static final int STOP_PATTERN = 0x3fa29; + + /** + * The codeword table from the Annex A of ISO/IEC 15438:2001(E). + */ + private static final int[][] CODEWORD_TABLE = { + {0x1d5c0, 0x1eaf0, 0x1f57c, 0x1d4e0, 0x1ea78, 0x1f53e, + 0x1a8c0, 0x1d470, 0x1a860, 0x15040, 0x1a830, 0x15020, + 0x1adc0, 0x1d6f0, 0x1eb7c, 0x1ace0, 0x1d678, 0x1eb3e, + 0x158c0, 0x1ac70, 0x15860, 0x15dc0, 0x1aef0, 0x1d77c, + 0x15ce0, 0x1ae78, 0x1d73e, 0x15c70, 0x1ae3c, 0x15ef0, + 0x1af7c, 0x15e78, 0x1af3e, 0x15f7c, 0x1f5fa, 0x1d2e0, + 0x1e978, 0x1f4be, 0x1a4c0, 0x1d270, 0x1e93c, 0x1a460, + 0x1d238, 0x14840, 0x1a430, 0x1d21c, 0x14820, 0x1a418, + 0x14810, 0x1a6e0, 0x1d378, 0x1e9be, 0x14cc0, 0x1a670, + 0x1d33c, 0x14c60, 0x1a638, 0x1d31e, 0x14c30, 0x1a61c, + 0x14ee0, 0x1a778, 0x1d3be, 0x14e70, 0x1a73c, 0x14e38, + 0x1a71e, 0x14f78, 0x1a7be, 0x14f3c, 0x14f1e, 0x1a2c0, + 0x1d170, 0x1e8bc, 0x1a260, 0x1d138, 0x1e89e, 0x14440, + 0x1a230, 0x1d11c, 0x14420, 0x1a218, 0x14410, 0x14408, + 0x146c0, 0x1a370, 0x1d1bc, 0x14660, 0x1a338, 0x1d19e, + 0x14630, 0x1a31c, 0x14618, 0x1460c, 0x14770, 0x1a3bc, + 0x14738, 0x1a39e, 0x1471c, 0x147bc, 0x1a160, 0x1d0b8, + 0x1e85e, 0x14240, 0x1a130, 0x1d09c, 0x14220, 0x1a118, + 0x1d08e, 0x14210, 0x1a10c, 0x14208, 0x1a106, 0x14360, + 0x1a1b8, 0x1d0de, 0x14330, 0x1a19c, 0x14318, 0x1a18e, + 0x1430c, 0x14306, 0x1a1de, 0x1438e, 0x14140, 0x1a0b0, + 0x1d05c, 0x14120, 0x1a098, 0x1d04e, 0x14110, 0x1a08c, + 0x14108, 0x1a086, 0x14104, 0x141b0, 0x14198, 0x1418c, + 0x140a0, 0x1d02e, 0x1a04c, 0x1a046, 0x14082, 0x1cae0, + 0x1e578, 0x1f2be, 0x194c0, 0x1ca70, 0x1e53c, 0x19460, + 0x1ca38, 0x1e51e, 0x12840, 0x19430, 0x12820, 0x196e0, + 0x1cb78, 0x1e5be, 0x12cc0, 0x19670, 0x1cb3c, 0x12c60, + 0x19638, 0x12c30, 0x12c18, 0x12ee0, 0x19778, 0x1cbbe, + 0x12e70, 0x1973c, 0x12e38, 0x12e1c, 0x12f78, 0x197be, + 0x12f3c, 0x12fbe, 0x1dac0, 0x1ed70, 0x1f6bc, 0x1da60, + 0x1ed38, 0x1f69e, 0x1b440, 0x1da30, 0x1ed1c, 0x1b420, + 0x1da18, 0x1ed0e, 0x1b410, 0x1da0c, 0x192c0, 0x1c970, + 0x1e4bc, 0x1b6c0, 0x19260, 0x1c938, 0x1e49e, 0x1b660, + 0x1db38, 0x1ed9e, 0x16c40, 0x12420, 0x19218, 0x1c90e, + 0x16c20, 0x1b618, 0x16c10, 0x126c0, 0x19370, 0x1c9bc, + 0x16ec0, 0x12660, 0x19338, 0x1c99e, 0x16e60, 0x1b738, + 0x1db9e, 0x16e30, 0x12618, 0x16e18, 0x12770, 0x193bc, + 0x16f70, 0x12738, 0x1939e, 0x16f38, 0x1b79e, 0x16f1c, + 0x127bc, 0x16fbc, 0x1279e, 0x16f9e, 0x1d960, 0x1ecb8, + 0x1f65e, 0x1b240, 0x1d930, 0x1ec9c, 0x1b220, 0x1d918, + 0x1ec8e, 0x1b210, 0x1d90c, 0x1b208, 0x1b204, 0x19160, + 0x1c8b8, 0x1e45e, 0x1b360, 0x19130, 0x1c89c, 0x16640, + 0x12220, 0x1d99c, 0x1c88e, 0x16620, 0x12210, 0x1910c, + 0x16610, 0x1b30c, 0x19106, 0x12204, 0x12360, 0x191b8, + 0x1c8de, 0x16760, 0x12330, 0x1919c, 0x16730, 0x1b39c, + 0x1918e, 0x16718, 0x1230c, 0x12306, 0x123b8, 0x191de, + 0x167b8, 0x1239c, 0x1679c, 0x1238e, 0x1678e, 0x167de, + 0x1b140, 0x1d8b0, 0x1ec5c, 0x1b120, 0x1d898, 0x1ec4e, + 0x1b110, 0x1d88c, 0x1b108, 0x1d886, 0x1b104, 0x1b102, + 0x12140, 0x190b0, 0x1c85c, 0x16340, 0x12120, 0x19098, + 0x1c84e, 0x16320, 0x1b198, 0x1d8ce, 0x16310, 0x12108, + 0x19086, 0x16308, 0x1b186, 0x16304, 0x121b0, 0x190dc, + 0x163b0, 0x12198, 0x190ce, 0x16398, 0x1b1ce, 0x1638c, + 0x12186, 0x16386, 0x163dc, 0x163ce, 0x1b0a0, 0x1d858, + 0x1ec2e, 0x1b090, 0x1d84c, 0x1b088, 0x1d846, 0x1b084, + 0x1b082, 0x120a0, 0x19058, 0x1c82e, 0x161a0, 0x12090, + 0x1904c, 0x16190, 0x1b0cc, 0x19046, 0x16188, 0x12084, + 0x16184, 0x12082, 0x120d8, 0x161d8, 0x161cc, 0x161c6, + 0x1d82c, 0x1d826, 0x1b042, 0x1902c, 0x12048, 0x160c8, + 0x160c4, 0x160c2, 0x18ac0, 0x1c570, 0x1e2bc, 0x18a60, + 0x1c538, 0x11440, 0x18a30, 0x1c51c, 0x11420, 0x18a18, + 0x11410, 0x11408, 0x116c0, 0x18b70, 0x1c5bc, 0x11660, + 0x18b38, 0x1c59e, 0x11630, 0x18b1c, 0x11618, 0x1160c, + 0x11770, 0x18bbc, 0x11738, 0x18b9e, 0x1171c, 0x117bc, + 0x1179e, 0x1cd60, 0x1e6b8, 0x1f35e, 0x19a40, 0x1cd30, + 0x1e69c, 0x19a20, 0x1cd18, 0x1e68e, 0x19a10, 0x1cd0c, + 0x19a08, 0x1cd06, 0x18960, 0x1c4b8, 0x1e25e, 0x19b60, + 0x18930, 0x1c49c, 0x13640, 0x11220, 0x1cd9c, 0x1c48e, + 0x13620, 0x19b18, 0x1890c, 0x13610, 0x11208, 0x13608, + 0x11360, 0x189b8, 0x1c4de, 0x13760, 0x11330, 0x1cdde, + 0x13730, 0x19b9c, 0x1898e, 0x13718, 0x1130c, 0x1370c, + 0x113b8, 0x189de, 0x137b8, 0x1139c, 0x1379c, 0x1138e, + 0x113de, 0x137de, 0x1dd40, 0x1eeb0, 0x1f75c, 0x1dd20, + 0x1ee98, 0x1f74e, 0x1dd10, 0x1ee8c, 0x1dd08, 0x1ee86, + 0x1dd04, 0x19940, 0x1ccb0, 0x1e65c, 0x1bb40, 0x19920, + 0x1eedc, 0x1e64e, 0x1bb20, 0x1dd98, 0x1eece, 0x1bb10, + 0x19908, 0x1cc86, 0x1bb08, 0x1dd86, 0x19902, 0x11140, + 0x188b0, 0x1c45c, 0x13340, 0x11120, 0x18898, 0x1c44e, + 0x17740, 0x13320, 0x19998, 0x1ccce, 0x17720, 0x1bb98, + 0x1ddce, 0x18886, 0x17710, 0x13308, 0x19986, 0x17708, + 0x11102, 0x111b0, 0x188dc, 0x133b0, 0x11198, 0x188ce, + 0x177b0, 0x13398, 0x199ce, 0x17798, 0x1bbce, 0x11186, + 0x13386, 0x111dc, 0x133dc, 0x111ce, 0x177dc, 0x133ce, + 0x1dca0, 0x1ee58, 0x1f72e, 0x1dc90, 0x1ee4c, 0x1dc88, + 0x1ee46, 0x1dc84, 0x1dc82, 0x198a0, 0x1cc58, 0x1e62e, + 0x1b9a0, 0x19890, 0x1ee6e, 0x1b990, 0x1dccc, 0x1cc46, + 0x1b988, 0x19884, 0x1b984, 0x19882, 0x1b982, 0x110a0, + 0x18858, 0x1c42e, 0x131a0, 0x11090, 0x1884c, 0x173a0, + 0x13190, 0x198cc, 0x18846, 0x17390, 0x1b9cc, 0x11084, + 0x17388, 0x13184, 0x11082, 0x13182, 0x110d8, 0x1886e, + 0x131d8, 0x110cc, 0x173d8, 0x131cc, 0x110c6, 0x173cc, + 0x131c6, 0x110ee, 0x173ee, 0x1dc50, 0x1ee2c, 0x1dc48, + 0x1ee26, 0x1dc44, 0x1dc42, 0x19850, 0x1cc2c, 0x1b8d0, + 0x19848, 0x1cc26, 0x1b8c8, 0x1dc66, 0x1b8c4, 0x19842, + 0x1b8c2, 0x11050, 0x1882c, 0x130d0, 0x11048, 0x18826, + 0x171d0, 0x130c8, 0x19866, 0x171c8, 0x1b8e6, 0x11042, + 0x171c4, 0x130c2, 0x171c2, 0x130ec, 0x171ec, 0x171e6, + 0x1ee16, 0x1dc22, 0x1cc16, 0x19824, 0x19822, 0x11028, + 0x13068, 0x170e8, 0x11022, 0x13062, 0x18560, 0x10a40, + 0x18530, 0x10a20, 0x18518, 0x1c28e, 0x10a10, 0x1850c, + 0x10a08, 0x18506, 0x10b60, 0x185b8, 0x1c2de, 0x10b30, + 0x1859c, 0x10b18, 0x1858e, 0x10b0c, 0x10b06, 0x10bb8, + 0x185de, 0x10b9c, 0x10b8e, 0x10bde, 0x18d40, 0x1c6b0, + 0x1e35c, 0x18d20, 0x1c698, 0x18d10, 0x1c68c, 0x18d08, + 0x1c686, 0x18d04, 0x10940, 0x184b0, 0x1c25c, 0x11b40, + 0x10920, 0x1c6dc, 0x1c24e, 0x11b20, 0x18d98, 0x1c6ce, + 0x11b10, 0x10908, 0x18486, 0x11b08, 0x18d86, 0x10902, + 0x109b0, 0x184dc, 0x11bb0, 0x10998, 0x184ce, 0x11b98, + 0x18dce, 0x11b8c, 0x10986, 0x109dc, 0x11bdc, 0x109ce, + 0x11bce, 0x1cea0, 0x1e758, 0x1f3ae, 0x1ce90, 0x1e74c, + 0x1ce88, 0x1e746, 0x1ce84, 0x1ce82, 0x18ca0, 0x1c658, + 0x19da0, 0x18c90, 0x1c64c, 0x19d90, 0x1cecc, 0x1c646, + 0x19d88, 0x18c84, 0x19d84, 0x18c82, 0x19d82, 0x108a0, + 0x18458, 0x119a0, 0x10890, 0x1c66e, 0x13ba0, 0x11990, + 0x18ccc, 0x18446, 0x13b90, 0x19dcc, 0x10884, 0x13b88, + 0x11984, 0x10882, 0x11982, 0x108d8, 0x1846e, 0x119d8, + 0x108cc, 0x13bd8, 0x119cc, 0x108c6, 0x13bcc, 0x119c6, + 0x108ee, 0x119ee, 0x13bee, 0x1ef50, 0x1f7ac, 0x1ef48, + 0x1f7a6, 0x1ef44, 0x1ef42, 0x1ce50, 0x1e72c, 0x1ded0, + 0x1ef6c, 0x1e726, 0x1dec8, 0x1ef66, 0x1dec4, 0x1ce42, + 0x1dec2, 0x18c50, 0x1c62c, 0x19cd0, 0x18c48, 0x1c626, + 0x1bdd0, 0x19cc8, 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0x17cb8, + 0x1be5e, 0x17c9c, 0x17c8e, 0x13c5e, 0x17cde, 0x17c5c, + 0x17c4e, 0x17c2e, 0x1c0b4, 0x1c0b2, 0x18174, 0x18172, + 0x102f4, 0x102f2, 0x1e0da, 0x1c09a, 0x1c1ba, 0x1813a, + 0x1837a, 0x1027a, 0x106fa, 0x10ebe, 0x11ebc, 0x11e9e, + 0x13eb8, 0x19f5e, 0x13e9c, 0x13e8e, 0x11e5e, 0x13ede, + 0x17eb0, 0x1bf5c, 0x17e98, 0x1bf4e, 0x17e8c, 0x17e86, + 0x13e5c, 0x17edc, 0x13e4e, 0x17ece, 0x17e58, 0x1bf2e, + 0x17e4c, 0x17e46, 0x13e2e, 0x17e6e, 0x17e2c, 0x17e26, + 0x10f5e, 0x11f5c, 0x11f4e, 0x13f58, 0x19fae, 0x13f4c, + 0x13f46, 0x11f2e, 0x13f6e, 0x13f2c, 0x13f26}, + {0x1abe0, 0x1d5f8, 0x153c0, 0x1a9f0, 0x1d4fc, 0x151e0, + 0x1a8f8, 0x1d47e, 0x150f0, 0x1a87c, 0x15078, 0x1fad0, + 0x15be0, 0x1adf8, 0x1fac8, 0x159f0, 0x1acfc, 0x1fac4, + 0x158f8, 0x1ac7e, 0x1fac2, 0x1587c, 0x1f5d0, 0x1faec, + 0x15df8, 0x1f5c8, 0x1fae6, 0x15cfc, 0x1f5c4, 0x15c7e, + 0x1f5c2, 0x1ebd0, 0x1f5ec, 0x1ebc8, 0x1f5e6, 0x1ebc4, + 0x1ebc2, 0x1d7d0, 0x1ebec, 0x1d7c8, 0x1ebe6, 0x1d7c4, + 0x1d7c2, 0x1afd0, 0x1d7ec, 0x1afc8, 0x1d7e6, 0x1afc4, + 0x14bc0, 0x1a5f0, 0x1d2fc, 0x149e0, 0x1a4f8, 0x1d27e, + 0x148f0, 0x1a47c, 0x14878, 0x1a43e, 0x1483c, 0x1fa68, + 0x14df0, 0x1a6fc, 0x1fa64, 0x14cf8, 0x1a67e, 0x1fa62, + 0x14c7c, 0x14c3e, 0x1f4e8, 0x1fa76, 0x14efc, 0x1f4e4, + 0x14e7e, 0x1f4e2, 0x1e9e8, 0x1f4f6, 0x1e9e4, 0x1e9e2, + 0x1d3e8, 0x1e9f6, 0x1d3e4, 0x1d3e2, 0x1a7e8, 0x1d3f6, + 0x1a7e4, 0x1a7e2, 0x145e0, 0x1a2f8, 0x1d17e, 0x144f0, + 0x1a27c, 0x14478, 0x1a23e, 0x1443c, 0x1441e, 0x1fa34, + 0x146f8, 0x1a37e, 0x1fa32, 0x1467c, 0x1463e, 0x1f474, + 0x1477e, 0x1f472, 0x1e8f4, 0x1e8f2, 0x1d1f4, 0x1d1f2, + 0x1a3f4, 0x1a3f2, 0x142f0, 0x1a17c, 0x14278, 0x1a13e, + 0x1423c, 0x1421e, 0x1fa1a, 0x1437c, 0x1433e, 0x1f43a, + 0x1e87a, 0x1d0fa, 0x14178, 0x1a0be, 0x1413c, 0x1411e, + 0x141be, 0x140bc, 0x1409e, 0x12bc0, 0x195f0, 0x1cafc, + 0x129e0, 0x194f8, 0x1ca7e, 0x128f0, 0x1947c, 0x12878, + 0x1943e, 0x1283c, 0x1f968, 0x12df0, 0x196fc, 0x1f964, + 0x12cf8, 0x1967e, 0x1f962, 0x12c7c, 0x12c3e, 0x1f2e8, + 0x1f976, 0x12efc, 0x1f2e4, 0x12e7e, 0x1f2e2, 0x1e5e8, + 0x1f2f6, 0x1e5e4, 0x1e5e2, 0x1cbe8, 0x1e5f6, 0x1cbe4, + 0x1cbe2, 0x197e8, 0x1cbf6, 0x197e4, 0x197e2, 0x1b5e0, + 0x1daf8, 0x1ed7e, 0x169c0, 0x1b4f0, 0x1da7c, 0x168e0, + 0x1b478, 0x1da3e, 0x16870, 0x1b43c, 0x16838, 0x1b41e, + 0x1681c, 0x125e0, 0x192f8, 0x1c97e, 0x16de0, 0x124f0, + 0x1927c, 0x16cf0, 0x1b67c, 0x1923e, 0x16c78, 0x1243c, + 0x16c3c, 0x1241e, 0x16c1e, 0x1f934, 0x126f8, 0x1937e, + 0x1fb74, 0x1f932, 0x16ef8, 0x1267c, 0x1fb72, 0x16e7c, + 0x1263e, 0x16e3e, 0x1f274, 0x1277e, 0x1f6f4, 0x1f272, + 0x16f7e, 0x1f6f2, 0x1e4f4, 0x1edf4, 0x1e4f2, 0x1edf2, + 0x1c9f4, 0x1dbf4, 0x1c9f2, 0x1dbf2, 0x193f4, 0x193f2, + 0x165c0, 0x1b2f0, 0x1d97c, 0x164e0, 0x1b278, 0x1d93e, + 0x16470, 0x1b23c, 0x16438, 0x1b21e, 0x1641c, 0x1640e, + 0x122f0, 0x1917c, 0x166f0, 0x12278, 0x1913e, 0x16678, + 0x1b33e, 0x1663c, 0x1221e, 0x1661e, 0x1f91a, 0x1237c, + 0x1fb3a, 0x1677c, 0x1233e, 0x1673e, 0x1f23a, 0x1f67a, + 0x1e47a, 0x1ecfa, 0x1c8fa, 0x1d9fa, 0x191fa, 0x162e0, + 0x1b178, 0x1d8be, 0x16270, 0x1b13c, 0x16238, 0x1b11e, + 0x1621c, 0x1620e, 0x12178, 0x190be, 0x16378, 0x1213c, + 0x1633c, 0x1211e, 0x1631e, 0x121be, 0x163be, 0x16170, + 0x1b0bc, 0x16138, 0x1b09e, 0x1611c, 0x1610e, 0x120bc, + 0x161bc, 0x1209e, 0x1619e, 0x160b8, 0x1b05e, 0x1609c, + 0x1608e, 0x1205e, 0x160de, 0x1605c, 0x1604e, 0x115e0, + 0x18af8, 0x1c57e, 0x114f0, 0x18a7c, 0x11478, 0x18a3e, + 0x1143c, 0x1141e, 0x1f8b4, 0x116f8, 0x18b7e, 0x1f8b2, + 0x1167c, 0x1163e, 0x1f174, 0x1177e, 0x1f172, 0x1e2f4, + 0x1e2f2, 0x1c5f4, 0x1c5f2, 0x18bf4, 0x18bf2, 0x135c0, + 0x19af0, 0x1cd7c, 0x134e0, 0x19a78, 0x1cd3e, 0x13470, + 0x19a3c, 0x13438, 0x19a1e, 0x1341c, 0x1340e, 0x112f0, + 0x1897c, 0x136f0, 0x11278, 0x1893e, 0x13678, 0x19b3e, + 0x1363c, 0x1121e, 0x1361e, 0x1f89a, 0x1137c, 0x1f9ba, + 0x1377c, 0x1133e, 0x1373e, 0x1f13a, 0x1f37a, 0x1e27a, + 0x1e6fa, 0x1c4fa, 0x1cdfa, 0x189fa, 0x1bae0, 0x1dd78, + 0x1eebe, 0x174c0, 0x1ba70, 0x1dd3c, 0x17460, 0x1ba38, + 0x1dd1e, 0x17430, 0x1ba1c, 0x17418, 0x1ba0e, 0x1740c, + 0x132e0, 0x19978, 0x1ccbe, 0x176e0, 0x13270, 0x1993c, + 0x17670, 0x1bb3c, 0x1991e, 0x17638, 0x1321c, 0x1761c, + 0x1320e, 0x1760e, 0x11178, 0x188be, 0x13378, 0x1113c, + 0x17778, 0x1333c, 0x1111e, 0x1773c, 0x1331e, 0x1771e, + 0x111be, 0x133be, 0x177be, 0x172c0, 0x1b970, 0x1dcbc, + 0x17260, 0x1b938, 0x1dc9e, 0x17230, 0x1b91c, 0x17218, + 0x1b90e, 0x1720c, 0x17206, 0x13170, 0x198bc, 0x17370, + 0x13138, 0x1989e, 0x17338, 0x1b99e, 0x1731c, 0x1310e, + 0x1730e, 0x110bc, 0x131bc, 0x1109e, 0x173bc, 0x1319e, + 0x1739e, 0x17160, 0x1b8b8, 0x1dc5e, 0x17130, 0x1b89c, + 0x17118, 0x1b88e, 0x1710c, 0x17106, 0x130b8, 0x1985e, + 0x171b8, 0x1309c, 0x1719c, 0x1308e, 0x1718e, 0x1105e, + 0x130de, 0x171de, 0x170b0, 0x1b85c, 0x17098, 0x1b84e, + 0x1708c, 0x17086, 0x1305c, 0x170dc, 0x1304e, 0x170ce, + 0x17058, 0x1b82e, 0x1704c, 0x17046, 0x1302e, 0x1706e, + 0x1702c, 0x17026, 0x10af0, 0x1857c, 0x10a78, 0x1853e, + 0x10a3c, 0x10a1e, 0x10b7c, 0x10b3e, 0x1f0ba, 0x1e17a, + 0x1c2fa, 0x185fa, 0x11ae0, 0x18d78, 0x1c6be, 0x11a70, + 0x18d3c, 0x11a38, 0x18d1e, 0x11a1c, 0x11a0e, 0x10978, + 0x184be, 0x11b78, 0x1093c, 0x11b3c, 0x1091e, 0x11b1e, + 0x109be, 0x11bbe, 0x13ac0, 0x19d70, 0x1cebc, 0x13a60, + 0x19d38, 0x1ce9e, 0x13a30, 0x19d1c, 0x13a18, 0x19d0e, + 0x13a0c, 0x13a06, 0x11970, 0x18cbc, 0x13b70, 0x11938, + 0x18c9e, 0x13b38, 0x1191c, 0x13b1c, 0x1190e, 0x13b0e, + 0x108bc, 0x119bc, 0x1089e, 0x13bbc, 0x1199e, 0x13b9e, + 0x1bd60, 0x1deb8, 0x1ef5e, 0x17a40, 0x1bd30, 0x1de9c, + 0x17a20, 0x1bd18, 0x1de8e, 0x17a10, 0x1bd0c, 0x17a08, + 0x1bd06, 0x17a04, 0x13960, 0x19cb8, 0x1ce5e, 0x17b60, + 0x13930, 0x19c9c, 0x17b30, 0x1bd9c, 0x19c8e, 0x17b18, + 0x1390c, 0x17b0c, 0x13906, 0x17b06, 0x118b8, 0x18c5e, + 0x139b8, 0x1189c, 0x17bb8, 0x1399c, 0x1188e, 0x17b9c, + 0x1398e, 0x17b8e, 0x1085e, 0x118de, 0x139de, 0x17bde, + 0x17940, 0x1bcb0, 0x1de5c, 0x17920, 0x1bc98, 0x1de4e, + 0x17910, 0x1bc8c, 0x17908, 0x1bc86, 0x17904, 0x17902, + 0x138b0, 0x19c5c, 0x179b0, 0x13898, 0x19c4e, 0x17998, + 0x1bcce, 0x1798c, 0x13886, 0x17986, 0x1185c, 0x138dc, + 0x1184e, 0x179dc, 0x138ce, 0x179ce, 0x178a0, 0x1bc58, + 0x1de2e, 0x17890, 0x1bc4c, 0x17888, 0x1bc46, 0x17884, + 0x17882, 0x13858, 0x19c2e, 0x178d8, 0x1384c, 0x178cc, + 0x13846, 0x178c6, 0x1182e, 0x1386e, 0x178ee, 0x17850, + 0x1bc2c, 0x17848, 0x1bc26, 0x17844, 0x17842, 0x1382c, + 0x1786c, 0x13826, 0x17866, 0x17828, 0x1bc16, 0x17824, + 0x17822, 0x13816, 0x17836, 0x10578, 0x182be, 0x1053c, + 0x1051e, 0x105be, 0x10d70, 0x186bc, 0x10d38, 0x1869e, + 0x10d1c, 0x10d0e, 0x104bc, 0x10dbc, 0x1049e, 0x10d9e, + 0x11d60, 0x18eb8, 0x1c75e, 0x11d30, 0x18e9c, 0x11d18, + 0x18e8e, 0x11d0c, 0x11d06, 0x10cb8, 0x1865e, 0x11db8, + 0x10c9c, 0x11d9c, 0x10c8e, 0x11d8e, 0x1045e, 0x10cde, + 0x11dde, 0x13d40, 0x19eb0, 0x1cf5c, 0x13d20, 0x19e98, + 0x1cf4e, 0x13d10, 0x19e8c, 0x13d08, 0x19e86, 0x13d04, + 0x13d02, 0x11cb0, 0x18e5c, 0x13db0, 0x11c98, 0x18e4e, + 0x13d98, 0x19ece, 0x13d8c, 0x11c86, 0x13d86, 0x10c5c, + 0x11cdc, 0x10c4e, 0x13ddc, 0x11cce, 0x13dce, 0x1bea0, + 0x1df58, 0x1efae, 0x1be90, 0x1df4c, 0x1be88, 0x1df46, + 0x1be84, 0x1be82, 0x13ca0, 0x19e58, 0x1cf2e, 0x17da0, + 0x13c90, 0x19e4c, 0x17d90, 0x1becc, 0x19e46, 0x17d88, + 0x13c84, 0x17d84, 0x13c82, 0x17d82, 0x11c58, 0x18e2e, + 0x13cd8, 0x11c4c, 0x17dd8, 0x13ccc, 0x11c46, 0x17dcc, + 0x13cc6, 0x17dc6, 0x10c2e, 0x11c6e, 0x13cee, 0x17dee, + 0x1be50, 0x1df2c, 0x1be48, 0x1df26, 0x1be44, 0x1be42, + 0x13c50, 0x19e2c, 0x17cd0, 0x13c48, 0x19e26, 0x17cc8, + 0x1be66, 0x17cc4, 0x13c42, 0x17cc2, 0x11c2c, 0x13c6c, + 0x11c26, 0x17cec, 0x13c66, 0x17ce6, 0x1be28, 0x1df16, + 0x1be24, 0x1be22, 0x13c28, 0x19e16, 0x17c68, 0x13c24, + 0x17c64, 0x13c22, 0x17c62, 0x11c16, 0x13c36, 0x17c76, + 0x1be14, 0x1be12, 0x13c14, 0x17c34, 0x13c12, 0x17c32, + 0x102bc, 0x1029e, 0x106b8, 0x1835e, 0x1069c, 0x1068e, + 0x1025e, 0x106de, 0x10eb0, 0x1875c, 0x10e98, 0x1874e, + 0x10e8c, 0x10e86, 0x1065c, 0x10edc, 0x1064e, 0x10ece, + 0x11ea0, 0x18f58, 0x1c7ae, 0x11e90, 0x18f4c, 0x11e88, + 0x18f46, 0x11e84, 0x11e82, 0x10e58, 0x1872e, 0x11ed8, + 0x18f6e, 0x11ecc, 0x10e46, 0x11ec6, 0x1062e, 0x10e6e, + 0x11eee, 0x19f50, 0x1cfac, 0x19f48, 0x1cfa6, 0x19f44, + 0x19f42, 0x11e50, 0x18f2c, 0x13ed0, 0x19f6c, 0x18f26, + 0x13ec8, 0x11e44, 0x13ec4, 0x11e42, 0x13ec2, 0x10e2c, + 0x11e6c, 0x10e26, 0x13eec, 0x11e66, 0x13ee6, 0x1dfa8, + 0x1efd6, 0x1dfa4, 0x1dfa2, 0x19f28, 0x1cf96, 0x1bf68, + 0x19f24, 0x1bf64, 0x19f22, 0x1bf62, 0x11e28, 0x18f16, + 0x13e68, 0x11e24, 0x17ee8, 0x13e64, 0x11e22, 0x17ee4, + 0x13e62, 0x17ee2, 0x10e16, 0x11e36, 0x13e76, 0x17ef6, + 0x1df94, 0x1df92, 0x19f14, 0x1bf34, 0x19f12, 0x1bf32, + 0x11e14, 0x13e34, 0x11e12, 0x17e74, 0x13e32, 0x17e72, + 0x1df8a, 0x19f0a, 0x1bf1a, 0x11e0a, 0x13e1a, 0x17e3a, + 0x1035c, 0x1034e, 0x10758, 0x183ae, 0x1074c, 0x10746, + 0x1032e, 0x1076e, 0x10f50, 0x187ac, 0x10f48, 0x187a6, + 0x10f44, 0x10f42, 0x1072c, 0x10f6c, 0x10726, 0x10f66, + 0x18fa8, 0x1c7d6, 0x18fa4, 0x18fa2, 0x10f28, 0x18796, + 0x11f68, 0x18fb6, 0x11f64, 0x10f22, 0x11f62, 0x10716, + 0x10f36, 0x11f76, 0x1cfd4, 0x1cfd2, 0x18f94, 0x19fb4, + 0x18f92, 0x19fb2, 0x10f14, 0x11f34, 0x10f12, 0x13f74, + 0x11f32, 0x13f72, 0x1cfca, 0x18f8a, 0x19f9a, 0x10f0a, + 0x11f1a, 0x13f3a, 0x103ac, 0x103a6, 0x107a8, 0x183d6, + 0x107a4, 0x107a2, 0x10396, 0x107b6, 0x187d4, 0x187d2, + 0x10794, 0x10fb4, 0x10792, 0x10fb2, 0x1c7ea}}; + + private static final int MIN_COLS = 2; + private static final int MAX_COLS = 30; + private static final int MAX_ROWS = 30; + private static final int MIN_ROWS = 2; + private static final float DEFAULT_MODULE_WIDTH = 0.357f; //1px in mm + private static final float HEIGHT = 16.0f; //mm + + private int errorCorrectionLevel; + private BarcodeMatrix barcodeMatrix; + + BarcodeMatrix getBarcodeMatrix() { + return barcodeMatrix; + } + + /** + * Calculates the necessary number of rows as described in annex Q of ISO/IEC 15438:2001(E). + * + * @param m the number of source codewords prior to the additional of the Symbol Length + * Descriptor and any pad codewords + * @param k the number of error correction codewords + * @param c the number of columns in the symbol in the data region (excluding start, stop and + * row indicator codewords) + * @return the number of rows in the symbol (r) + */ + private static int getNumberOfRows(int m, int k, int c) throws WriterException { + int r = calculateNumberOfRows(m, k, c); + if (r > 90) { + throw new WriterException( + "The message doesn't fit in the configured symbol size." + + " The resultant number of rows for this barcode exceeds 90." + + " Please increase the number of columns or decrease the error correction" + + " level to reduce the number of rows."); + } + if (r < 2) { + throw new WriterException( + "The message is too short for the configured symbol size." + + " The resultant number of rows is less than 3." + + " Please decrease the number of columns or increase the error correction" + + " level to increase the number of rows."); + } + return r; + } + + /** + * Calculates the necessary number of rows as described in annex Q of ISO/IEC 15438:2001(E). + * + * @param m the number of source codewords prior to the additional of the Symbol Length + * Descriptor and any pad codewords + * @param k the number of error correction codewords + * @param c the number of columns in the symbol in the data region (excluding start, stop and + * row indicator codewords) + * @return the number of rows in the symbol (r) + */ + private static int calculateNumberOfRows(int m, int k, int c) { + int r = ((m + 1 + k) / c) + 1; + if (c * r >= (m + 1 + k + c)) { + r--; + } + return r; + } + + /** + * Calculates the number of pad codewords as described in 4.9.2 of ISO/IEC 15438:2001(E). + * + * @param m the number of source codewords prior to the additional of the Symbol Length + * Descriptor and any pad codewords + * @param k the number of error correction codewords + * @param c the number of columns in the symbol in the data region (excluding start, stop and + * row indicator codewords) + * @param r the number of rows in the symbol + * @return the number of pad codewords + */ + private static int getNumberOfPadCodewords(int m, int k, int c, int r) { + int n = c * r - k; + return n > m + 1 ? n - m - 1 : 0; + } + + /** + * Calculates the number of data codewords (equals the Symbol Length Descriptor). + * + * @param m the number of source codewords prior to the additional of the Symbol Length + * Descriptor and any pad codewords + * @param errorCorrectionLevel the error correction level (value between 0 and 8) + * @param c the number of columns in the symbol in the data region (excluding start, stop and + * row indicator codewords) + * @return the number of data codewords + */ + private static int getNumberOfDataCodewords(int m, int errorCorrectionLevel, int c) throws WriterException { + int k = PDF417ErrorCorrection.getErrorCorrectionCodewordCount(errorCorrectionLevel); + int r = getNumberOfRows(m, k, c); + return c * r - k; + } + + private static void encodeChar(int pattern, int len, BarcodeRow logic) { + int map = 1 << len - 1; + boolean last = (pattern & map) != 0; //Initialize to inverse of first bit + int width = 0; + for (int i = 0; i < len; i++) { + boolean black = (pattern & map) != 0; + if (last == black) { + width++; + } else { + logic.addBar(last, width); + + last = black; + width = 1; + } + map >>= 1; + } + logic.addBar(last, width); + } + + private void encodeLowLevel(String fullCodewords, int c, int r, int errorCorrectionLevel, BarcodeMatrix logic) { + + this.errorCorrectionLevel = errorCorrectionLevel; + + int idx = 0; + for (int y = 0; y < r; y++) { + int cluster = y % 3; + logic.startRow(); + encodeChar(START_PATTERN, 17, logic.getCurrentRow()); + + int left; + int right; + if (cluster == 0) { + left = (30 * (y / 3)) + ((r - 1) / 3); + right = (30 * (y / 3)) + (c - 1); + } else if (cluster == 1) { + left = (30 * (y / 3)) + (errorCorrectionLevel * 3) + ((r - 1) % 3); + right = (30 * (y / 3)) + ((r - 1) / 3); + } else { + left = (30 * (y / 3)) + (c - 1); + right = (30 * (y / 3)) + (errorCorrectionLevel * 3) + ((r - 1) % 3); + } + + int pattern = CODEWORD_TABLE[cluster][left]; + encodeChar(pattern, 17, logic.getCurrentRow()); + + for (int x = 0; x < c; x++) { + pattern = CODEWORD_TABLE[cluster][fullCodewords.charAt(idx)]; + encodeChar(pattern, 17, logic.getCurrentRow()); + idx++; + } + + pattern = CODEWORD_TABLE[cluster][right]; + encodeChar(pattern, 17, logic.getCurrentRow()); + + encodeChar(STOP_PATTERN, 18, logic.getCurrentRow()); + } + } + + /** + * Generates the barcode logic. + * + * @param msg the message to encode + */ + void generateBarcodeLogic(String msg, int errorCorrectionLevel) throws WriterException { + + //1. step: High-level encoding + int errorCorrectionCodeWords = PDF417ErrorCorrection.getErrorCorrectionCodewordCount(errorCorrectionLevel); + String highLevel = PDF417HighLevelEncoder.encodeHighLevel(msg); + int sourceCodeWords = highLevel.length(); + + int[] dimension = determineDimensions(sourceCodeWords); + + if (dimension == null) { + throw new WriterException("Unable to fit message in columns"); + } + + int cols = dimension[0]; + int rows = dimension[1]; + + int pad = getNumberOfPadCodewords(sourceCodeWords, errorCorrectionCodeWords, cols, rows); + + //2. step: construct data codewords + int n = getNumberOfDataCodewords(sourceCodeWords, errorCorrectionLevel, cols); + if (n > 929) { + throw new WriterException( + "Encoded message contains to many code words, message to big (" + msg.length() + " bytes)"); + } + + StringBuffer sb = new StringBuffer(n); + sb.append((char) n); + sb.append(highLevel); + for (int i = 0; i < pad; i++) { + sb.append((char) 900); //PAD characters + } + String dataCodewords = sb.toString(); + + //3. step: Error correction + String ec = PDF417ErrorCorrection.generateErrorCorrection(dataCodewords, errorCorrectionLevel); + String fullCodewords = dataCodewords + ec; + + //4. step: low-level encoding + barcodeMatrix = new BarcodeMatrix(rows, cols); + encodeLowLevel(fullCodewords, cols, rows, errorCorrectionLevel, barcodeMatrix); + } + + /** + * Determine optimal nr of columns and rows for the specified number of + * codewords. + * + * @param sourceCodeWords number of code words + * @return dimension object containing cols as width and rows as height + */ + int[] determineDimensions(int sourceCodeWords) { + + float ratio = 0.0f; + int[] dimension = null; + int errorCorrectionCodeWords = PDF417ErrorCorrection.getErrorCorrectionCodewordCount(errorCorrectionLevel); + + for (int cols = MIN_COLS; cols <= MAX_COLS; cols++) { + + int rows = calculateNumberOfRows(sourceCodeWords, errorCorrectionCodeWords, cols); + + if (rows < MIN_ROWS) { + break; + } + + if (rows > MAX_ROWS) { + continue; + } + + float newRatio = ((17 * cols + 69) * DEFAULT_MODULE_WIDTH) / (rows * HEIGHT); + + // ignore if previous ratio is closer to preferred ratio + float preferredRatio = 3.0f; + if (dimension != null && Math.abs(newRatio - preferredRatio) > Math.abs(ratio - preferredRatio)) { + continue; + } + + ratio = newRatio; + dimension = new int[] {cols, rows}; + } + + return dimension; + } + +} + diff --git a/core/src/com/google/zxing/pdf417/encoder/PDF417ErrorCorrection.java b/core/src/com/google/zxing/pdf417/encoder/PDF417ErrorCorrection.java new file mode 100644 index 000000000..27afb7577 --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/PDF417ErrorCorrection.java @@ -0,0 +1,204 @@ +/* + * Copyright 2006 Jeremias Maerki in part, and ZXing Authors in part + * + * Licensed 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. + */ + +/* + * This file has been modified from its original form in Barcode4J. + */ + +package com.google.zxing.pdf417.encoder; + +import com.google.zxing.WriterException; + +/** + * PDF417 error correction code following the algorithm described in ISO/IEC 15438:2001(E) in + * chapter 4.10. + */ +final class PDF417ErrorCorrection { + + /** + * Tables of coefficients for calculating error correction words + * (see annex F, ISO/IEC 15438:2001(E)) + */ + private static final int[][] EC_COEFFICIENTS = { + {27, 917}, + {522, 568, 723, 809}, + {237, 308, 436, 284, 646, 653, 428, 379}, + {274, 562, 232, 755, 599, 524, 801, 132, 295, 116, 442, 428, 295, + 42, 176, 65}, + {361, 575, 922, 525, 176, 586, 640, 321, 536, 742, 677, 742, 687, + 284, 193, 517, 273, 494, 263, 147, 593, 800, 571, 320, 803, + 133, 231, 390, 685, 330, 63, 410}, + {539, 422, 6, 93, 862, 771, 453, 106, 610, 287, 107, 505, 733, + 877, 381, 612, 723, 476, 462, 172, 430, 609, 858, 822, 543, + 376, 511, 400, 672, 762, 283, 184, 440, 35, 519, 31, 460, + 594, 225, 535, 517, 352, 605, 158, 651, 201, 488, 502, 648, + 733, 717, 83, 404, 97, 280, 771, 840, 629, 4, 381, 843, + 623, 264, 543}, + {521, 310, 864, 547, 858, 580, 296, 379, 53, 779, 897, 444, 400, + 925, 749, 415, 822, 93, 217, 208, 928, 244, 583, 620, 246, + 148, 447, 631, 292, 908, 490, 704, 516, 258, 457, 907, 594, + 723, 674, 292, 272, 96, 684, 432, 686, 606, 860, 569, 193, + 219, 129, 186, 236, 287, 192, 775, 278, 173, 40, 379, 712, + 463, 646, 776, 171, 491, 297, 763, 156, 732, 95, 270, 447, + 90, 507, 48, 228, 821, 808, 898, 784, 663, 627, 378, 382, + 262, 380, 602, 754, 336, 89, 614, 87, 432, 670, 616, 157, + 374, 242, 726, 600, 269, 375, 898, 845, 454, 354, 130, 814, + 587, 804, 34, 211, 330, 539, 297, 827, 865, 37, 517, 834, + 315, 550, 86, 801, 4, 108, 539}, + {524, 894, 75, 766, 882, 857, 74, 204, 82, 586, 708, 250, 905, + 786, 138, 720, 858, 194, 311, 913, 275, 190, 375, 850, 438, + 733, 194, 280, 201, 280, 828, 757, 710, 814, 919, 89, 68, + 569, 11, 204, 796, 605, 540, 913, 801, 700, 799, 137, 439, + 418, 592, 668, 353, 859, 370, 694, 325, 240, 216, 257, 284, + 549, 209, 884, 315, 70, 329, 793, 490, 274, 877, 162, 749, + 812, 684, 461, 334, 376, 849, 521, 307, 291, 803, 712, 19, + 358, 399, 908, 103, 511, 51, 8, 517, 225, 289, 470, 637, + 731, 66, 255, 917, 269, 463, 830, 730, 433, 848, 585, 136, + 538, 906, 90, 2, 290, 743, 199, 655, 903, 329, 49, 802, + 580, 355, 588, 188, 462, 10, 134, 628, 320, 479, 130, 739, + 71, 263, 318, 374, 601, 192, 605, 142, 673, 687, 234, 722, + 384, 177, 752, 607, 640, 455, 193, 689, 707, 805, 641, 48, + 60, 732, 621, 895, 544, 261, 852, 655, 309, 697, 755, 756, + 60, 231, 773, 434, 421, 726, 528, 503, 118, 49, 795, 32, + 144, 500, 238, 836, 394, 280, 566, 319, 9, 647, 550, 73, + 914, 342, 126, 32, 681, 331, 792, 620, 60, 609, 441, 180, + 791, 893, 754, 605, 383, 228, 749, 760, 213, 54, 297, 134, + 54, 834, 299, 922, 191, 910, 532, 609, 829, 189, 20, 167, + 29, 872, 449, 83, 402, 41, 656, 505, 579, 481, 173, 404, + 251, 688, 95, 497, 555, 642, 543, 307, 159, 924, 558, 648, + 55, 497, 10}, + {352, 77, 373, 504, 35, 599, 428, 207, 409, 574, 118, 498, 285, + 380, 350, 492, 197, 265, 920, 155, 914, 299, 229, 643, 294, + 871, 306, 88, 87, 193, 352, 781, 846, 75, 327, 520, 435, + 543, 203, 666, 249, 346, 781, 621, 640, 268, 794, 534, 539, + 781, 408, 390, 644, 102, 476, 499, 290, 632, 545, 37, 858, + 916, 552, 41, 542, 289, 122, 272, 383, 800, 485, 98, 752, + 472, 761, 107, 784, 860, 658, 741, 290, 204, 681, 407, 855, + 85, 99, 62, 482, 180, 20, 297, 451, 593, 913, 142, 808, + 684, 287, 536, 561, 76, 653, 899, 729, 567, 744, 390, 513, + 192, 516, 258, 240, 518, 794, 395, 768, 848, 51, 610, 384, + 168, 190, 826, 328, 596, 786, 303, 570, 381, 415, 641, 156, + 237, 151, 429, 531, 207, 676, 710, 89, 168, 304, 402, 40, + 708, 575, 162, 864, 229, 65, 861, 841, 512, 164, 477, 221, + 92, 358, 785, 288, 357, 850, 836, 827, 736, 707, 94, 8, + 494, 114, 521, 2, 499, 851, 543, 152, 729, 771, 95, 248, + 361, 578, 323, 856, 797, 289, 51, 684, 466, 533, 820, 669, + 45, 902, 452, 167, 342, 244, 173, 35, 463, 651, 51, 699, + 591, 452, 578, 37, 124, 298, 332, 552, 43, 427, 119, 662, + 777, 475, 850, 764, 364, 578, 911, 283, 711, 472, 420, 245, + 288, 594, 394, 511, 327, 589, 777, 699, 688, 43, 408, 842, + 383, 721, 521, 560, 644, 714, 559, 62, 145, 873, 663, 713, + 159, 672, 729, 624, 59, 193, 417, 158, 209, 563, 564, 343, + 693, 109, 608, 563, 365, 181, 772, 677, 310, 248, 353, 708, + 410, 579, 870, 617, 841, 632, 860, 289, 536, 35, 777, 618, + 586, 424, 833, 77, 597, 346, 269, 757, 632, 695, 751, 331, + 247, 184, 45, 787, 680, 18, 66, 407, 369, 54, 492, 228, + 613, 830, 922, 437, 519, 644, 905, 789, 420, 305, 441, 207, + 300, 892, 827, 141, 537, 381, 662, 513, 56, 252, 341, 242, + 797, 838, 837, 720, 224, 307, 631, 61, 87, 560, 310, 756, + 665, 397, 808, 851, 309, 473, 795, 378, 31, 647, 915, 459, + 806, 590, 731, 425, 216, 548, 249, 321, 881, 699, 535, 673, + 782, 210, 815, 905, 303, 843, 922, 281, 73, 469, 791, 660, + 162, 498, 308, 155, 422, 907, 817, 187, 62, 16, 425, 535, + 336, 286, 437, 375, 273, 610, 296, 183, 923, 116, 667, 751, + 353, 62, 366, 691, 379, 687, 842, 37, 357, 720, 742, 330, + 5, 39, 923, 311, 424, 242, 749, 321, 54, 669, 316, 342, + 299, 534, 105, 667, 488, 640, 672, 576, 540, 316, 486, 721, + 610, 46, 656, 447, 171, 616, 464, 190, 531, 297, 321, 762, + 752, 533, 175, 134, 14, 381, 433, 717, 45, 111, 20, 596, + 284, 736, 138, 646, 411, 877, 669, 141, 919, 45, 780, 407, + 164, 332, 899, 165, 726, 600, 325, 498, 655, 357, 752, 768, + 223, 849, 647, 63, 310, 863, 251, 366, 304, 282, 738, 675, + 410, 389, 244, 31, 121, 303, 263}}; + + private PDF417ErrorCorrection() { + } + + /** + * Determines the number of error correction codewords for a specified error correction + * level. + * + * @param errorCorrectionLevel the error correction level (0-8) + * @return the number of codewords generated for error correction + */ + static int getErrorCorrectionCodewordCount(int errorCorrectionLevel) { + if (errorCorrectionLevel < 0 || errorCorrectionLevel > 8) { + throw new IllegalArgumentException("Error correction level must be between 0 and 8!"); + } + return 1 << (errorCorrectionLevel + 1); + } + + /** + * Returns the recommended minimum error correction level as described in annex E of + * ISO/IEC 15438:2001(E). + * + * @param n the number of data codewords + * @return the recommended minimum error correction level + */ + static int getRecommendedMinimumErrorCorrectionLevel(int n) throws WriterException { + if (n <= 0) { + throw new IllegalArgumentException("n must be > 0"); + } + if (n <= 40) { + return 2; + } + if (n <= 160) { + return 3; + } + if (n <= 320) { + return 4; + } + if (n <= 863) { + return 5; + } + throw new WriterException("No recommendation possible"); + } + + /** + * Generates the error correction codewords according to 4.10 in ISO/IEC 15438:2001(E). + * + * @param dataCodewords the data codewords + * @param errorCorrectionLevel the error correction level (0-8) + * @return the String representing the error correction codewords + */ + static String generateErrorCorrection(String dataCodewords, int errorCorrectionLevel) { + int k = getErrorCorrectionCodewordCount(errorCorrectionLevel); + char[] e = new char[k]; + int sld = dataCodewords.length(); + for (int i = 0; i < sld; i++) { + int t1 = (dataCodewords.charAt(i) + e[e.length - 1]) % 929; + int t2; + int t3; + for (int j = k - 1; j >= 1; j--) { + t2 = (t1 * EC_COEFFICIENTS[errorCorrectionLevel][j]) % 929; + t3 = 929 - t2; + e[j] = (char) ((e[j - 1] + t3) % 929); + } + t2 = (t1 * EC_COEFFICIENTS[errorCorrectionLevel][0]) % 929; + t3 = 929 - t2; + e[0] = (char) (t3 % 929); + } + StringBuffer sb = new StringBuffer(k); + for (int j = k - 1; j >= 0; j--) { + if (e[j] != 0) { + e[j] = (char) (929 - e[j]); + } + sb.append(e[j]); + } + return sb.toString(); + } + +} diff --git a/core/src/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java b/core/src/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java new file mode 100644 index 000000000..1f922f75b --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java @@ -0,0 +1,564 @@ +/* + * Copyright 2006 Jeremias Maerki in part, and ZXing Authors in part + * + * Licensed 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. + */ + +/* + * This file has been modified from its original form in Barcode4J. + */ + +package com.google.zxing.pdf417.encoder; + +import com.google.zxing.WriterException; + +/** + * PDF417 high-level encoder following the algorithm described in ISO/IEC 15438:2001(E) in + * annex P. + */ +final class PDF417HighLevelEncoder { + + /** + * code for Text compaction + */ + private static final int TEXT_COMPACTION = 0; + + /** + * code for Byte compaction + */ + private static final int BYTE_COMPACTION = 1; + + /** + * code for Numeric compaction + */ + private static final int NUMERIC_COMPACTION = 2; + + /** + * Text compaction submode Alpha + */ + private static final int SUBMODE_ALPHA = 0; + + /** + * Text compaction submode Lower + */ + private static final int SUBMODE_LOWER = 1; + + /** + * Text compaction submode Mixed + */ + private static final int SUBMODE_MIXED = 2; + + /** + * Text compaction submode Punctuation + */ + private static final int SUBMODE_PUNCTUATION = 3; + + /** + * mode latch to Text Compaction mode + */ + private static final int LATCH_TO_TEXT = 900; + + /** + * mode latch to Byte Compaction mode (number of characters NOT a multiple of 6) + */ + private static final int LATCH_TO_BYTE_PADDED = 901; + + /** + * mode latch to Numeric Compaction mode + */ + private static final int LATCH_TO_NUMERIC = 902; + + /** + * mode shift to Byte Compaction mode + */ + private static final int SHIFT_TO_BYTE = 913; + + /** + * mode latch to Byte Compaction mode (number of characters a multiple of 6) + */ + private static final int LATCH_TO_BYTE = 924; + + /** + * Raw code table for text compaction Mixed sub-mode + */ + private static final byte[] TEXT_MIXED_RAW = { + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 38, 13, 9, 44, 58, + 35, 45, 46, 36, 47, 43, 37, 42, 61, 94, 0, 32, 0, 0, 0}; + + /** + * Raw code table for text compaction: Punctuation sub-mode + */ + private static final byte[] TEXT_PUNCTUATION_RAW = { + 59, 60, 62, 64, 91, 92, 93, 95, 96, 126, 33, 13, 9, 44, 58, + 10, 45, 46, 36, 47, 34, 124, 42, 40, 41, 63, 123, 125, 39, 0}; + + private static final byte[] MIXED = new byte[128]; + private static final byte[] PUNCTUATION = new byte[128]; + + private PDF417HighLevelEncoder() { + } + + static { + //Construct inverse lookups + for (int i = 0; i < MIXED.length; i++) { + MIXED[i] = -1; + } + for (byte i = 0; i < TEXT_MIXED_RAW.length; i++) { + byte b = TEXT_MIXED_RAW[i]; + if (b > 0) { + MIXED[b] = i; + } + } + for (int i = 0; i < PUNCTUATION.length; i++) { + PUNCTUATION[i] = -1; + } + for (byte i = 0; i < TEXT_PUNCTUATION_RAW.length; i++) { + byte b = TEXT_PUNCTUATION_RAW[i]; + if (b > 0) { + PUNCTUATION[b] = i; + } + } + } + + /** + * Converts the message to a byte array using the default encoding (cp437) as defined by the + * specification + * + * @param msg the message + * @return the byte array of the message + */ + private static byte[] getBytesForMessage(String msg) { + return msg.getBytes(); + } + + /** + * Performs high-level encoding of a PDF417 message using the algorithm described in annex P + * of ISO/IEC 15438:2001(E). + * + * @param msg the message + * @return the encoded message (the char values range from 0 to 928) + */ + static String encodeHighLevel(String msg) throws WriterException { + byte[] bytes = null; //Fill later and only if needed + + //the codewords 0..928 are encoded as Unicode characters + StringBuffer sb = new StringBuffer(msg.length()); + + int len = msg.length(); + int p = 0; + int encodingMode = TEXT_COMPACTION; //Default mode, see 4.4.2.1 + int textSubMode = SUBMODE_ALPHA; + while (p < len) { + int n = determineConsecutiveDigitCount(msg, p); + if (n >= 13) { + sb.append((char) LATCH_TO_NUMERIC); + encodingMode = NUMERIC_COMPACTION; + textSubMode = SUBMODE_ALPHA; //Reset after latch + encodeNumeric(msg, p, n, sb); + p += n; + } else { + int t = determineConsecutiveTextCount(msg, p); + if (t >= 5 || n == len) { + if (encodingMode != TEXT_COMPACTION) { + sb.append((char) LATCH_TO_TEXT); + encodingMode = TEXT_COMPACTION; + textSubMode = SUBMODE_ALPHA; //start with submode alpha after latch + } + textSubMode = encodeText(msg, p, t, sb, textSubMode); + p += t; + } else { + if (bytes == null) { + bytes = getBytesForMessage(msg); + } + int b = determineConsecutiveBinaryCount(msg, bytes, p); + if (b == 0) { + b = 1; + } + if (b == 1 && encodingMode == TEXT_COMPACTION) { + //Switch for one byte (instead of latch) + encodeBinary(bytes, p, 1, TEXT_COMPACTION, sb); + } else { + //Mode latch performed by encodeBinary() + encodeBinary(bytes, p, b, encodingMode, sb); + encodingMode = BYTE_COMPACTION; + textSubMode = SUBMODE_ALPHA; //Reset after latch + } + p += b; + } + } + } + + return sb.toString(); + } + + /** + * Encode parts of the message using Text Compaction as described in ISO/IEC 15438:2001(E), + * chapter 4.4.2. + * + * @param msg the message + * @param startpos the start position within the message + * @param count the number of characters to encode + * @param sb receives the encoded codewords + * @param initialSubmode should normally be SUBMODE_ALPHA + * @return the text submode in which this method ends + */ + private static int encodeText(String msg, int startpos, int count, StringBuffer sb, int initialSubmode) { + StringBuffer tmp = new StringBuffer(count); + int submode = initialSubmode; + int idx = 0; + while (true) { + char ch = msg.charAt(startpos + idx); + switch (submode) { + case SUBMODE_ALPHA: + if (isAlphaUpper(ch)) { + if (ch == ' ') { + tmp.append((char) 26); //space + } else { + tmp.append((char) (ch - 65)); + } + } else { + if (isAlphaLower(ch)) { + submode = SUBMODE_LOWER; + tmp.append((char) 27); //ll + continue; + } else if (isMixed(ch)) { + submode = SUBMODE_MIXED; + tmp.append((char) 28); //ml + continue; + } else { + tmp.append((char) 29); //ps + tmp.append((char) PUNCTUATION[ch]); + break; + } + } + break; + case SUBMODE_LOWER: + if (isAlphaLower(ch)) { + if (ch == ' ') { + tmp.append((char) 26); //space + } else { + tmp.append((char) (ch - 97)); + } + } else { + if (isAlphaUpper(ch)) { + tmp.append((char) 27); //as + tmp.append((char) (ch - 65)); + //space cannot happen here, it is also in "Lower" + break; + } else if (isMixed(ch)) { + submode = SUBMODE_MIXED; + tmp.append((char) 28); //ml + continue; + } else { + tmp.append((char) 29); //ps + tmp.append((char) PUNCTUATION[ch]); + break; + } + } + break; + case SUBMODE_MIXED: + if (isMixed(ch)) { + tmp.append((char) MIXED[ch]); + } else { + if (isAlphaUpper(ch)) { + submode = SUBMODE_ALPHA; + tmp.append((char) 28); //al + continue; + } else if (isAlphaLower(ch)) { + submode = SUBMODE_LOWER; + tmp.append((char) 27); //ll + continue; + } else { + if (startpos + idx + 1 < count) { + char next = msg.charAt(startpos + idx + 1); + if (isPunctuation(next)) { + submode = SUBMODE_PUNCTUATION; + tmp.append((char) 25); //pl + continue; + } + } + tmp.append((char) 29); //ps + tmp.append((char) PUNCTUATION[ch]); + } + } + break; + default: //SUBMODE_PUNCTUATION + if (isPunctuation(ch)) { + tmp.append((char) PUNCTUATION[ch]); + } else { + submode = SUBMODE_ALPHA; + tmp.append((char) 29); //al + continue; + } + } + idx++; + if (idx >= count) { + break; + } + } + char h = 0; + int len = tmp.length(); + for (int i = 0; i < len; i++) { + boolean odd = (i % 2) != 0; + if (odd) { + h = (char) ((h * 30) + tmp.charAt(i)); + sb.append(h); + } else { + h = tmp.charAt(i); + } + } + if ((len % 2) != 0) { + sb.append((char) ((h * 30) + 29)); //ps + } + return submode; + } + + /** + * Encode parts of the message using Byte Compaction as described in ISO/IEC 15438:2001(E), + * chapter 4.4.3. The Unicode characters will be converted to binary using the cp437 + * codepage. + * + * @param bytes the message converted to a byte array + * @param startpos the start position within the message + * @param count the number of bytes to encode + * @param startmode the mode from which this method starts + * @param sb receives the encoded codewords + */ + private static void encodeBinary(byte[] bytes, int startpos, int count, int startmode, StringBuffer sb) { + if (count == 1 && startmode == TEXT_COMPACTION) { + sb.append((char) SHIFT_TO_BYTE); + } else { + boolean sixpack = (count % 6) == 0; + if (sixpack) { + sb.append((char) LATCH_TO_BYTE); + } else { + sb.append((char) LATCH_TO_BYTE_PADDED); + } + } + + char[] chars = new char[5]; + int idx = startpos; + while ((startpos + count - idx) >= 6) { + long t = 0; + for (int i = 0; i < 6; i++) { + t <<= 8; + t += bytes[idx + i] & 0xff; + } + for (int i = 0; i < 5; i++) { + chars[i] = (char) (t % 900); + t /= 900; + } + for (int i = chars.length - 1; i >= 0; i--) { + sb.append(chars[i]); + } + idx += 6; + } + //Encode rest (remaining n<5 bytes if any) + for (int i = idx; i < startpos + count; i++) { + int ch = bytes[i] & 0xff; + sb.append((char) ch); + } + } + + /* + private static void encodeNumeric(String msg, int startpos, int count, StringBuffer sb) { + int idx = 0; + StringBuffer tmp = new StringBuffer(count / 3 + 1); + BigInteger num900 = BigInteger.valueOf(900); + BigInteger num0 = BigInteger.valueOf(0); + while (idx < count - 1) { + tmp.setLength(0); + int len = Math.min(44, count - idx); + String part = '1' + msg.substring(startpos + idx, startpos + idx + len); + BigInteger bigint = new BigInteger(part); + do { + BigInteger c = bigint.mod(num900); + tmp.append((char) c.intValue()); + bigint = bigint.divide(num900); + } while (!bigint.equals(num0)); + + //Reverse temporary string + for (int i = tmp.length() - 1; i >= 0; i--) { + sb.append(tmp.charAt(i)); + } + idx += len; + } + } + */ + + // TODO either this needs to reimplement BigInteger's functionality to properly handle very + // large numeric strings, even in Java ME, or, we give up Java ME and use the version above + // with BigInteger + + private static void encodeNumeric(String msg, int startpos, int count, StringBuffer sb) { + int idx = 0; + StringBuffer tmp = new StringBuffer(count / 3 + 1); + while (idx < count - 1) { + tmp.setLength(0); + int len = Math.min(44, count - idx); + String part = '1' + msg.substring(startpos + idx, startpos + idx + len); + long bigint = Long.parseLong(part); + do { + long c = bigint % 900; + tmp.append((char) c); + bigint /= 900; + } while (bigint != 0); + + //Reverse temporary string + for (int i = tmp.length() - 1; i >= 0; i--) { + sb.append(tmp.charAt(i)); + } + idx += len; + } + } + + private static boolean isDigit(char ch) { + return ch >= '0' && ch <= '9'; + } + + private static boolean isAlphaUpper(char ch) { + return ch == ' ' || (ch >= 'A' && ch <= 'Z'); + } + + private static boolean isAlphaLower(char ch) { + return ch == ' ' || (ch >= 'a' && ch <= 'z'); + } + + private static boolean isMixed(char ch) { + return MIXED[ch] != -1; + } + + private static boolean isPunctuation(char ch) { + return PUNCTUATION[ch] != -1; + } + + private static boolean isText(char ch) { + return ch == '\t' || ch == '\n' || ch == '\r' || (ch >= 32 && ch <= 126); + } + + /** + * Determines the number of consecutive characters that are encodable using numeric compaction. + * + * @param msg the message + * @param startpos the start position within the message + * @return the requested character count + */ + private static int determineConsecutiveDigitCount(String msg, int startpos) { + int count = 0; + int len = msg.length(); + int idx = startpos; + if (idx < len) { + char ch = msg.charAt(idx); + while (isDigit(ch) && idx < len) { + count++; + idx++; + if (idx < len) { + ch = msg.charAt(idx); + } + } + } + return count; + } + + /** + * Determines the number of consecutive characters that are encodable using text compaction. + * + * @param msg the message + * @param startpos the start position within the message + * @return the requested character count + */ + private static int determineConsecutiveTextCount(String msg, int startpos) { + int len = msg.length(); + int idx = startpos; + while (idx < len) { + char ch = msg.charAt(idx); + int numericCount = 0; + while (numericCount < 13 && isDigit(ch) && idx < len) { + numericCount++; + idx++; + if (idx < len) { + ch = msg.charAt(idx); + } + } + if (numericCount >= 13) { + return idx - startpos - numericCount; + } + if (numericCount > 0) { + //Heuristic: All text-encodable chars or digits are binary encodable + continue; + } + ch = msg.charAt(idx); + + //Check if character is encodable + if (!isText(ch)) { + break; + } + idx++; + } + return idx - startpos; + } + + /** + * Determines the number of consecutive characters that are encodable using binary compaction. + * + * @param msg the message + * @param bytes the message converted to a byte array + * @param startpos the start position within the message + * @return the requested character count + */ + private static int determineConsecutiveBinaryCount(String msg, byte[] bytes, int startpos) throws WriterException { + int len = msg.length(); + int idx = startpos; + while (idx < len) { + char ch = msg.charAt(idx); + int numericCount = 0; + + while (numericCount < 13 && isDigit(ch)) { + numericCount++; + //textCount++; + int i = idx + numericCount; + if (i >= len) { + break; + } + ch = msg.charAt(i); + } + if (numericCount >= 13) { + return idx - startpos; + } + int textCount = 0; + while (textCount < 5 && isText(ch)) { + textCount++; + int i = idx + textCount; + if (i >= len) { + break; + } + ch = msg.charAt(i); + } + if (textCount >= 5) { + return idx - startpos; + } + ch = msg.charAt(idx); + + //Check if character is encodable + //Sun returns a ASCII 63 (?) for a character that cannot be mapped. Let's hope all + //other VMs do the same + if (bytes[idx] == 63 && ch != '?') { + throw new WriterException("Non-encodable character detected: " + ch + " (Unicode: " + (int) ch + ')'); + } + idx++; + } + return idx - startpos; + } + + +} diff --git a/core/src/com/google/zxing/pdf417/encoder/PDF417Writer.java b/core/src/com/google/zxing/pdf417/encoder/PDF417Writer.java new file mode 100644 index 000000000..a039a7bc9 --- /dev/null +++ b/core/src/com/google/zxing/pdf417/encoder/PDF417Writer.java @@ -0,0 +1,124 @@ +/* + * Copyright 2011 ZXing authors + * + * Licensed 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. + */ + +package com.google.zxing.pdf417.encoder; + +import com.google.zxing.BarcodeFormat; +import com.google.zxing.Writer; +import com.google.zxing.WriterException; +import com.google.zxing.common.BitMatrix; + +import java.util.Hashtable; + +/** + * @author Jacob Haynes + */ +public final class PDF417Writer implements Writer { + + public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Hashtable hints) + throws WriterException { + return encode(contents, format, width, height); + } + + public BitMatrix encode(String contents, BarcodeFormat format, int width, int height) throws WriterException { + + if (format != BarcodeFormat.PDF_417) { + throw new IllegalArgumentException("Can only encode PDF_417, but got " + format); + } + + PDF417 encoder = new PDF417(); + + //No error correction at the moment + int errorCorrectionLevel = 3; + encoder.generateBarcodeLogic(contents, errorCorrectionLevel); + + // Give it data to be encoded + //encoderExt.setData(content.getBytes()); + // Find the Error correction level automatically + + //encoderExt.encode(); + //encoderExt.createArray(); + int lineThickness = 3; + int aspectRatio = 8; + byte[][] originalScale = encoder.getBarcodeMatrix().getScaledMatrix(lineThickness, aspectRatio * lineThickness); + boolean rotated = false; + if ((height > width) ^ (originalScale[0].length < originalScale.length)) { + originalScale = rotateArray(originalScale); + rotated = true; + } + + int scaleX = width / originalScale[0].length; + int scaleY = height / originalScale.length; + + int scale; + if (scaleX < scaleY) { + scale = scaleX; + } else { + scale = scaleY; + } + + if (scale > 1) { + byte[][] scaledMatrix = + encoder.getBarcodeMatrix().getScaledMatrix(scale * lineThickness, scale * aspectRatio * lineThickness); + if (rotated) { + scaledMatrix = rotateArray(scaledMatrix); + } + return bitMatrixFrombitArray(scaledMatrix); + } + return bitMatrixFrombitArray(originalScale); + } + + /** + * This takes an array holding the values of the PDF 417 + * + * @param input a byte array of information with 0 is black, and 1 is white + * @return BitMatrix of the input + */ + private static BitMatrix bitMatrixFrombitArray(byte[][] input) { + //Creates a small whitespace boarder around the barcode + int whiteSpace = 30; + + //Creates the bitmatrix with extra space for whtespace + BitMatrix output = new BitMatrix(input.length + 2 * whiteSpace, input[0].length + 2 * whiteSpace); + output.clear(); + for (int ii = 0; ii < input.length; ii++) { + for (int jj = 0; jj < input[0].length; jj++) { + // Zero is white in the bytematrix + if (input[ii][jj] == 1) { + output.set(ii + whiteSpace, jj + whiteSpace); + } + } + } + return output; + } + + /** + * Takes and rotates the it 90 degrees + */ + private static byte[][] rotateArray(byte[][] bitarray) { + byte[][] temp = new byte[bitarray[0].length][bitarray.length]; + for (int ii = 0; ii < bitarray.length; ii++) { + // This makes the direction consistent on screen when rotating the + // screen; + int inverseii = bitarray.length - ii - 1; + for (int jj = 0; jj < bitarray[0].length; jj++) { + temp[jj][inverseii] = bitarray[ii][jj]; + } + } + return temp; + } + +}