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// 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;
}
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