| // 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 |
| |
| #include <algorithm> |
| |
| #include "core/fxge/cfx_graphstatedata.h" |
| #include "core/fxge/cfx_pathdata.h" |
| #include "core/fxge/cfx_renderdevice.h" |
| #include "fxbarcode/BC_TwoDimWriter.h" |
| #include "fxbarcode/BC_Writer.h" |
| #include "fxbarcode/common/BC_CommonBitMatrix.h" |
| #include "third_party/base/numerics/safe_math.h" |
| #include "third_party/base/ptr_util.h" |
| |
| CBC_TwoDimWriter::CBC_TwoDimWriter() : m_iCorrectLevel(1), m_bFixedSize(true) {} |
| |
| CBC_TwoDimWriter::~CBC_TwoDimWriter() {} |
| |
| void CBC_TwoDimWriter::RenderDeviceResult(CFX_RenderDevice* device, |
| const CFX_Matrix* matrix) { |
| CFX_GraphStateData stateData; |
| CFX_PathData path; |
| path.AppendRect(0, 0, (float)m_Width, (float)m_Height); |
| device->DrawPath(&path, matrix, &stateData, m_backgroundColor, |
| m_backgroundColor, FXFILL_ALTERNATE); |
| int32_t leftPos = 0; |
| int32_t topPos = 0; |
| if (m_bFixedSize) { |
| leftPos = (m_Width - m_output->GetWidth()) / 2; |
| topPos = (m_Height - m_output->GetHeight()) / 2; |
| } |
| CFX_Matrix matri = *matrix; |
| if (m_Width < m_output->GetWidth() && m_Height < m_output->GetHeight()) { |
| CFX_Matrix matriScale((float)m_Width / (float)m_output->GetWidth(), 0.0, |
| 0.0, (float)m_Height / (float)m_output->GetHeight(), |
| 0.0, 0.0); |
| matriScale.Concat(*matrix); |
| matri = matriScale; |
| } |
| for (int32_t x = 0; x < m_output->GetWidth(); x++) { |
| for (int32_t y = 0; y < m_output->GetHeight(); y++) { |
| CFX_PathData rect; |
| rect.AppendRect((float)leftPos + x, (float)topPos + y, |
| (float)(leftPos + x + 1), (float)(topPos + y + 1)); |
| if (m_output->Get(x, y)) { |
| CFX_GraphStateData data; |
| device->DrawPath(&rect, &matri, &data, m_barColor, 0, FXFILL_WINDING); |
| } |
| } |
| } |
| } |
| |
| int32_t CBC_TwoDimWriter::GetErrorCorrectionLevel() const { |
| return m_iCorrectLevel; |
| } |
| |
| bool CBC_TwoDimWriter::RenderResult(uint8_t* code, |
| int32_t codeWidth, |
| int32_t codeHeight) { |
| int32_t inputWidth = codeWidth; |
| int32_t inputHeight = codeHeight; |
| int32_t tempWidth = inputWidth + 2; |
| int32_t tempHeight = inputHeight + 2; |
| float moduleHSize = std::min(m_ModuleWidth, m_ModuleHeight); |
| moduleHSize = std::min(moduleHSize, 8.0f); |
| moduleHSize = std::max(moduleHSize, 1.0f); |
| pdfium::base::CheckedNumeric<int32_t> scaledWidth = tempWidth; |
| pdfium::base::CheckedNumeric<int32_t> scaledHeight = tempHeight; |
| scaledWidth *= moduleHSize; |
| scaledHeight *= moduleHSize; |
| |
| int32_t outputWidth = scaledWidth.ValueOrDie(); |
| int32_t outputHeight = scaledHeight.ValueOrDie(); |
| if (m_bFixedSize) { |
| if (m_Width < outputWidth || m_Height < outputHeight) { |
| return false; |
| } |
| } else { |
| if (m_Width > outputWidth || m_Height > outputHeight) { |
| outputWidth = |
| (int32_t)(outputWidth * ceil((float)m_Width / (float)outputWidth)); |
| outputHeight = |
| (int32_t)(outputHeight * ceil((float)m_Height / (float)outputHeight)); |
| } |
| } |
| int32_t multiX = (int32_t)ceil((float)outputWidth / (float)tempWidth); |
| int32_t multiY = (int32_t)ceil((float)outputHeight / (float)tempHeight); |
| if (m_bFixedSize) { |
| multiX = std::min(multiX, multiY); |
| multiY = multiX; |
| } |
| int32_t leftPadding = std::max((outputWidth - (inputWidth * multiX)) / 2, 0); |
| int32_t topPadding = std::max((outputHeight - (inputHeight * multiY)) / 2, 0); |
| m_output = pdfium::MakeUnique<CBC_CommonBitMatrix>(); |
| m_output->Init(outputWidth, outputHeight); |
| for (int32_t inputY = 0, outputY = topPadding; |
| (inputY < inputHeight) && (outputY < outputHeight - multiY); |
| inputY++, outputY += multiY) { |
| for (int32_t inputX = 0, outputX = leftPadding; |
| (inputX < inputWidth) && (outputX < outputWidth - multiX); |
| inputX++, outputX += multiX) { |
| if (code[inputX + inputY * inputWidth] == 1 && |
| !m_output->SetRegion(outputX, outputY, multiX, multiY)) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |