// 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; }