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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 // Original code is licensed as follows:
      7 /*
      8  * Copyright 2012 ZXing authors
      9  *
     10  * Licensed under the Apache License, Version 2.0 (the "License");
     11  * you may not use this file except in compliance with the License.
     12  * You may obtain a copy of the License at
     13  *
     14  *      http://www.apache.org/licenses/LICENSE-2.0
     15  *
     16  * Unless required by applicable law or agreed to in writing, software
     17  * distributed under the License is distributed on an "AS IS" BASIS,
     18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     19  * See the License for the specific language governing permissions and
     20  * limitations under the License.
     21  */
     22 
     23 #include "xfa/src/fxbarcode/barcode.h"
     24 #include "xfa/src/fxbarcode/BC_TwoDimWriter.h"
     25 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
     26 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
     27 #include "BC_PDF417Compaction.h"
     28 #include "BC_PDF417.h"
     29 #include "BC_PDF417BarcodeMatrix.h"
     30 #include "BC_PDF417Writer.h"
     31 CBC_PDF417Writer::CBC_PDF417Writer() {
     32   m_bFixedSize = FALSE;
     33 }
     34 CBC_PDF417Writer::~CBC_PDF417Writer() {
     35   m_bTruncated = TRUE;
     36 }
     37 FX_BOOL CBC_PDF417Writer::SetErrorCorrectionLevel(int32_t level) {
     38   if (level < 0 || level > 8) {
     39     return FALSE;
     40   }
     41   m_iCorrectLevel = level;
     42   return TRUE;
     43 }
     44 void CBC_PDF417Writer::SetTruncated(FX_BOOL truncated) {
     45   m_bTruncated = truncated;
     46 }
     47 uint8_t* CBC_PDF417Writer::Encode(const CFX_WideString& contents,
     48                                   int32_t& outWidth,
     49                                   int32_t& outHeight,
     50                                   int32_t& e) {
     51   CBC_PDF417 encoder;
     52   int32_t col = (m_Width / m_ModuleWidth - 69) / 17;
     53   int32_t row = m_Height / (m_ModuleWidth * 20);
     54   if (row >= 3 && row <= 90 && col >= 1 && col <= 30) {
     55     encoder.setDimensions(col, col, row, row);
     56   } else if (col >= 1 && col <= 30) {
     57     encoder.setDimensions(col, col, 90, 3);
     58   } else if (row >= 3 && row <= 90) {
     59     encoder.setDimensions(30, 1, row, row);
     60   }
     61   encoder.generateBarcodeLogic(contents, m_iCorrectLevel, e);
     62   BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
     63   int32_t lineThickness = 2;
     64   int32_t aspectRatio = 4;
     65   CBC_BarcodeMatrix* barcodeMatrix = encoder.getBarcodeMatrix();
     66   CFX_ByteArray originalScale;
     67   originalScale.Copy(barcodeMatrix->getScaledMatrix(
     68       lineThickness, aspectRatio * lineThickness));
     69   int32_t width = outWidth;
     70   int32_t height = outHeight;
     71   outWidth = barcodeMatrix->getWidth();
     72   outHeight = barcodeMatrix->getHeight();
     73   FX_BOOL rotated = FALSE;
     74   if ((height > width) ^ (outWidth < outHeight)) {
     75     rotateArray(originalScale, outHeight, outWidth);
     76     rotated = TRUE;
     77     int32_t temp = outHeight;
     78     outHeight = outWidth;
     79     outWidth = temp;
     80   }
     81   int32_t scaleX = width / outWidth;
     82   int32_t scaleY = height / outHeight;
     83   int32_t scale;
     84   if (scaleX < scaleY) {
     85     scale = scaleX;
     86   } else {
     87     scale = scaleY;
     88   }
     89   if (scale > 1) {
     90     originalScale.RemoveAll();
     91     originalScale.Copy(barcodeMatrix->getScaledMatrix(
     92         scale * lineThickness, scale * aspectRatio * lineThickness));
     93     if (rotated) {
     94       rotateArray(originalScale, outHeight, outWidth);
     95       int32_t temp = outHeight;
     96       outHeight = outWidth;
     97       outWidth = temp;
     98     }
     99   }
    100   uint8_t* result = FX_Alloc2D(uint8_t, outHeight, outWidth);
    101   FXSYS_memcpy(result, originalScale.GetData(), outHeight * outWidth);
    102   return result;
    103 }
    104 void CBC_PDF417Writer::rotateArray(CFX_ByteArray& bitarray,
    105                                    int32_t height,
    106                                    int32_t width) {
    107   CFX_ByteArray temp;
    108   temp.Copy(bitarray);
    109   for (int32_t ii = 0; ii < height; ii++) {
    110     int32_t inverseii = height - ii - 1;
    111     for (int32_t jj = 0; jj < width; jj++) {
    112       bitarray[jj * height + inverseii] = temp[ii * width + jj];
    113     }
    114   }
    115 }
    116