1 files changed, 150 insertions, 0 deletions
diff --git a/fxbarcode/BC_TwoDimWriter.cpp b/fxbarcode/BC_TwoDimWriter.cpp
new file mode 100644
index 0000000000..65d28a2090
--- /dev/null
+++ b/fxbarcode/BC_TwoDimWriter.cpp
@@ -0,0 +1,150 @@
+// 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;
+}
+
+void CBC_TwoDimWriter::RenderBitmapResult(
+    CFX_RetainPtr<CFX_DIBitmap>& pOutBitmap,
+    int32_t& e) {
+  if (m_bFixedSize) {
+    pOutBitmap = CreateDIBitmap(m_Width, m_Height);
+  } else {
+    pOutBitmap = CreateDIBitmap(m_output->GetWidth(), m_output->GetHeight());
+  }
+  if (!pOutBitmap) {
+    e = BCExceptionFailToCreateBitmap;
+    return;
+  }
+  pOutBitmap->Clear(m_backgroundColor);
+  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;
+  }
+  for (int32_t x = 0; x < m_output->GetWidth(); x++) {
+    for (int32_t y = 0; y < m_output->GetHeight(); y++) {
+      if (m_output->Get(x, y)) {
+        pOutBitmap->SetPixel(leftPos + x, topPos + y, m_barColor);
+      }
+    }
+  }
+  if (!m_bFixedSize)
+    pOutBitmap = pOutBitmap->StretchTo(m_Width, m_Height);
+}
+
+void CBC_TwoDimWriter::RenderResult(uint8_t* code,
+                                    int32_t codeWidth,
+                                    int32_t codeHeight,
+                                    int32_t& e) {
+  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) {
+      e = BCExceptionBitmapSizeError;
+      return;
+    }
+  } 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 = (outputWidth - (inputWidth * multiX)) / 2;
+  int32_t topPadding = (outputHeight - (inputHeight * multiY)) / 2;
+  if (leftPadding < 0) {
+    leftPadding = 0;
+  }
+  if (topPadding < 0) {
+    topPadding = 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, e);
+        if (e != BCExceptionNO)
+          return;
+      }
+    }
+  }
+}