diff options
Diffstat (limited to 'fxbarcode/datamatrix/BC_DefaultPlacement.cpp')
| -rw-r--r-- | fxbarcode/datamatrix/BC_DefaultPlacement.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/fxbarcode/datamatrix/BC_DefaultPlacement.cpp b/fxbarcode/datamatrix/BC_DefaultPlacement.cpp new file mode 100644 index 0000000000..405b4f72a1 --- /dev/null +++ b/fxbarcode/datamatrix/BC_DefaultPlacement.cpp @@ -0,0 +1,163 @@ +// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com +// Original code is licensed as follows: +/* + * Copyright 2006 Jeremias Maerki. + * + * 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. + */ + +#include "fxbarcode/datamatrix/BC_DefaultPlacement.h" +#include "fxbarcode/datamatrix/BC_Encoder.h" + +CBC_DefaultPlacement::CBC_DefaultPlacement(CFX_WideString codewords, + int32_t numcols, + int32_t numrows) { + m_codewords = codewords; + m_numcols = numcols; + m_numrows = numrows; + m_bits.resize(numcols * numrows); + for (int32_t i = 0; i < numcols * numrows; i++) { + m_bits[i] = (uint8_t)2; + } +} +CBC_DefaultPlacement::~CBC_DefaultPlacement() {} + +int32_t CBC_DefaultPlacement::getNumrows() { + return m_numrows; +} +int32_t CBC_DefaultPlacement::getNumcols() { + return m_numcols; +} +std::vector<uint8_t>& CBC_DefaultPlacement::getBits() { + return m_bits; +} +bool CBC_DefaultPlacement::getBit(int32_t col, int32_t row) { + return m_bits[row * m_numcols + col] == 1; +} +void CBC_DefaultPlacement::setBit(int32_t col, int32_t row, bool bit) { + m_bits[row * m_numcols + col] = bit ? (uint8_t)1 : (uint8_t)0; +} +bool CBC_DefaultPlacement::hasBit(int32_t col, int32_t row) { + return m_bits[row * m_numcols + col] != 2; +} +void CBC_DefaultPlacement::place() { + int32_t pos = 0; + int32_t row = 4; + int32_t col = 0; + do { + if ((row == m_numrows) && (col == 0)) { + corner1(pos++); + } + if ((row == m_numrows - 2) && (col == 0) && ((m_numcols % 4) != 0)) { + corner2(pos++); + } + if ((row == m_numrows - 2) && (col == 0) && (m_numcols % 8 == 4)) { + corner3(pos++); + } + if ((row == m_numrows + 4) && (col == 2) && ((m_numcols % 8) == 0)) { + corner4(pos++); + } + do { + if ((row < m_numrows) && (col >= 0) && !hasBit(col, row)) { + utah(row, col, pos++); + } + row -= 2; + col += 2; + } while (row >= 0 && (col < m_numcols)); + row++; + col += 3; + do { + if ((row >= 0) && (col < m_numcols) && !hasBit(col, row)) { + utah(row, col, pos++); + } + row += 2; + col -= 2; + } while ((row < m_numrows) && (col >= 0)); + row += 3; + col++; + } while ((row < m_numrows) || (col < m_numcols)); + if (!hasBit(m_numcols - 1, m_numrows - 1)) { + setBit(m_numcols - 1, m_numrows - 1, true); + setBit(m_numcols - 2, m_numrows - 2, true); + } +} +void CBC_DefaultPlacement::module(int32_t row, + int32_t col, + int32_t pos, + int32_t bit) { + if (row < 0) { + row += m_numrows; + col += 4 - ((m_numrows + 4) % 8); + } + if (col < 0) { + col += m_numcols; + row += 4 - ((m_numcols + 4) % 8); + } + int32_t v = m_codewords.GetAt(pos); + v &= 1 << (8 - bit); + setBit(col, row, v != 0); +} +void CBC_DefaultPlacement::utah(int32_t row, int32_t col, int32_t pos) { + module(row - 2, col - 2, pos, 1); + module(row - 2, col - 1, pos, 2); + module(row - 1, col - 2, pos, 3); + module(row - 1, col - 1, pos, 4); + module(row - 1, col, pos, 5); + module(row, col - 2, pos, 6); + module(row, col - 1, pos, 7); + module(row, col, pos, 8); +} +void CBC_DefaultPlacement::corner1(int32_t pos) { + module(m_numrows - 1, 0, pos, 1); + module(m_numrows - 1, 1, pos, 2); + module(m_numrows - 1, 2, pos, 3); + module(0, m_numcols - 2, pos, 4); + module(0, m_numcols - 1, pos, 5); + module(1, m_numcols - 1, pos, 6); + module(2, m_numcols - 1, pos, 7); + module(3, m_numcols - 1, pos, 8); +} +void CBC_DefaultPlacement::corner2(int32_t pos) { + module(m_numrows - 3, 0, pos, 1); + module(m_numrows - 2, 0, pos, 2); + module(m_numrows - 1, 0, pos, 3); + module(0, m_numcols - 4, pos, 4); + module(0, m_numcols - 3, pos, 5); + module(0, m_numcols - 2, pos, 6); + module(0, m_numcols - 1, pos, 7); + module(1, m_numcols - 1, pos, 8); +} +void CBC_DefaultPlacement::corner3(int32_t pos) { + module(m_numrows - 3, 0, pos, 1); + module(m_numrows - 2, 0, pos, 2); + module(m_numrows - 1, 0, pos, 3); + module(0, m_numcols - 2, pos, 4); + module(0, m_numcols - 1, pos, 5); + module(1, m_numcols - 1, pos, 6); + module(2, m_numcols - 1, pos, 7); + module(3, m_numcols - 1, pos, 8); +} +void CBC_DefaultPlacement::corner4(int32_t pos) { + module(m_numrows - 1, 0, pos, 1); + module(m_numrows - 1, m_numcols - 1, pos, 2); + module(0, m_numcols - 3, pos, 3); + module(0, m_numcols - 2, pos, 4); + module(0, m_numcols - 1, pos, 5); + module(1, m_numcols - 3, pos, 6); + module(1, m_numcols - 2, pos, 7); + module(1, m_numcols - 1, pos, 8); +} |