Move xfa/src up to xfa/.

This CL moves the xfa/src files up to the xfa/ directory and fixes the includes,
include guards, and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1803723002 .

1 files changed, 254 insertions, 0 deletions

diff --git a/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp
new file mode 100644
index 0000000000..2aeacd1399
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp
@@ -0,0 +1,254 @@
+// 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
+// Original code is licensed as follows:
+/*
+ * Copyright 2010 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "xfa/fxbarcode/common/BC_WhiteRectangleDetector.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/BC_ResultPoint.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
+    CBC_CommonBitMatrix* image) {
+  m_image = image;
+  m_height = image->GetHeight();
+  m_width = image->GetWidth();
+  m_leftInit = (m_width - INIT_SIZE) >> 1;
+  m_rightInit = (m_width + INIT_SIZE) >> 1;
+  m_upInit = (m_height - INIT_SIZE) >> 1;
+  m_downInit = (m_height + INIT_SIZE) >> 1;
+}
+void CBC_WhiteRectangleDetector::Init(int32_t& e) {
+  if (m_upInit < 0 || m_leftInit < 0 || m_downInit >= m_height ||
+      m_rightInit >= m_width) {
+    e = BCExceptionNotFound;
+    BC_EXCEPTION_CHECK_ReturnVoid(e);
+  }
+}
+CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
+    CBC_CommonBitMatrix* image,
+    int32_t initSize,
+    int32_t x,
+    int32_t y) {
+  m_image = image;
+  m_height = image->GetHeight();
+  m_width = image->GetWidth();
+  int32_t halfsize = initSize >> 1;
+  m_leftInit = x - halfsize;
+  m_rightInit = x + halfsize;
+  m_upInit = y - halfsize;
+  m_downInit = y + halfsize;
+}
+CBC_WhiteRectangleDetector::~CBC_WhiteRectangleDetector() {}
+CFX_PtrArray* CBC_WhiteRectangleDetector::Detect(int32_t& e) {
+  int32_t left = m_leftInit;
+  int32_t right = m_rightInit;
+  int32_t up = m_upInit;
+  int32_t down = m_downInit;
+  FX_BOOL sizeExceeded = FALSE;
+  FX_BOOL aBlackPointFoundOnBorder = TRUE;
+  FX_BOOL atLeastOneBlackPointFoundOnBorder = FALSE;
+  while (aBlackPointFoundOnBorder) {
+    aBlackPointFoundOnBorder = FALSE;
+    FX_BOOL rightBorderNotWhite = TRUE;
+    while (rightBorderNotWhite && right < m_width) {
+      rightBorderNotWhite = ContainsBlackPoint(up, down, right, FALSE);
+      if (rightBorderNotWhite) {
+        right++;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (right >= m_width) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL bottomBorderNotWhite = TRUE;
+    while (bottomBorderNotWhite && down < m_height) {
+      bottomBorderNotWhite = ContainsBlackPoint(left, right, down, TRUE);
+      if (bottomBorderNotWhite) {
+        down++;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (down >= m_height) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL leftBorderNotWhite = TRUE;
+    while (leftBorderNotWhite && left >= 0) {
+      leftBorderNotWhite = ContainsBlackPoint(up, down, left, FALSE);
+      if (leftBorderNotWhite) {
+        left--;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (left < 0) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL topBorderNotWhite = TRUE;
+    while (topBorderNotWhite && up >= 0) {
+      topBorderNotWhite = ContainsBlackPoint(left, right, up, TRUE);
+      if (topBorderNotWhite) {
+        up--;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (up < 0) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    if (aBlackPointFoundOnBorder) {
+      atLeastOneBlackPointFoundOnBorder = TRUE;
+    }
+  }
+  if (!sizeExceeded && atLeastOneBlackPointFoundOnBorder) {
+    int32_t maxSize = right - left;
+    std::unique_ptr<CBC_ResultPoint> z;
+    for (int32_t i = 1; i < maxSize; i++) {
+      z.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(down - i),
+                                     (FX_FLOAT)(left + i), (FX_FLOAT)(down)));
+      if (z)
+        break;
+    }
+    if (z.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> t;
+    for (int32_t j = 1; j < maxSize; j++) {
+      t.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(up + j),
+                                     (FX_FLOAT)(left + j), (FX_FLOAT)up));
+      if (t)
+        break;
+    }
+    if (t.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> x;
+    for (int32_t k = 1; k < maxSize; k++) {
+      x.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(up + k),
+                                     (FX_FLOAT)(right - k), (FX_FLOAT)up));
+      if (x)
+        break;
+    }
+    if (x.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> y;
+    for (int32_t m = 1; m < maxSize; m++) {
+      y.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(down - m),
+                                     (FX_FLOAT)(right - m), (FX_FLOAT)down));
+      if (y)
+        break;
+    }
+    if (y.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    return CenterEdges(y.get(), z.get(), x.get(), t.get());
+  } else {
+    e = BCExceptionNotFound;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  return NULL;
+}
+int32_t CBC_WhiteRectangleDetector::Round(FX_FLOAT d) {
+  return (int32_t)(d + 0.5f);
+}
+CBC_ResultPoint* CBC_WhiteRectangleDetector::GetBlackPointOnSegment(
+    FX_FLOAT aX,
+    FX_FLOAT aY,
+    FX_FLOAT bX,
+    FX_FLOAT bY) {
+  int32_t dist = DistanceL2(aX, aY, bX, bY);
+  float xStep = (bX - aX) / dist;
+  float yStep = (bY - aY) / dist;
+  for (int32_t i = 0; i < dist; i++) {
+    int32_t x = Round(aX + i * xStep);
+    int32_t y = Round(aY + i * yStep);
+    if (m_image->Get(x, y)) {
+      return new CBC_ResultPoint((FX_FLOAT)x, (FX_FLOAT)y);
+    }
+  }
+  return NULL;
+}
+int32_t CBC_WhiteRectangleDetector::DistanceL2(FX_FLOAT aX,
+                                               FX_FLOAT aY,
+                                               FX_FLOAT bX,
+                                               FX_FLOAT bY) {
+  float xDiff = aX - bX;
+  float yDiff = aY - bY;
+  return Round((float)sqrt(xDiff * xDiff + yDiff * yDiff));
+}
+CFX_PtrArray* CBC_WhiteRectangleDetector::CenterEdges(CBC_ResultPoint* y,
+                                                      CBC_ResultPoint* z,
+                                                      CBC_ResultPoint* x,
+                                                      CBC_ResultPoint* t) {
+  float yi = y->GetX();
+  float yj = y->GetY();
+  float zi = z->GetX();
+  float zj = z->GetY();
+  float xi = x->GetX();
+  float xj = x->GetY();
+  float ti = t->GetX();
+  float tj = t->GetY();
+  if (yi < m_width / 2) {
+    CFX_PtrArray* result = new CFX_PtrArray;
+    result->SetSize(4);
+    (*result)[0] = new CBC_ResultPoint(ti - CORR, tj + CORR);
+    (*result)[1] = new CBC_ResultPoint(zi + CORR, zj + CORR);
+    (*result)[2] = new CBC_ResultPoint(xi - CORR, xj - CORR);
+    (*result)[3] = new CBC_ResultPoint(yi + CORR, yj - CORR);
+    return result;
+  } else {
+    CFX_PtrArray* result = new CFX_PtrArray;
+    result->SetSize(4);
+    (*result)[0] = new CBC_ResultPoint(ti + CORR, tj + CORR);
+    (*result)[1] = new CBC_ResultPoint(zi + CORR, zj - CORR);
+    (*result)[2] = new CBC_ResultPoint(xi - CORR, xj + CORR);
+    (*result)[3] = new CBC_ResultPoint(yi - CORR, yj - CORR);
+    return result;
+  }
+}
+FX_BOOL CBC_WhiteRectangleDetector::ContainsBlackPoint(int32_t a,
+                                                       int32_t b,
+                                                       int32_t fixed,
+                                                       FX_BOOL horizontal) {
+  if (horizontal) {
+    for (int32_t x = a; x <= b; x++) {
+      if (m_image->Get(x, fixed)) {
+        return TRUE;
+      }
+    }
+  } else {
+    for (int32_t y = a; y <= b; y++) {
+      if (m_image->Get(fixed, y)) {
+        return TRUE;
+      }
+    }
+  }
+  return FALSE;
+}