1 files changed, 117 insertions, 0 deletions
diff --git a/xfa/fgas/layout/fgas_unicode.cpp b/xfa/fgas/layout/fgas_unicode.cpp
new file mode 100644
index 0000000000..a4cbee03b7
--- /dev/null
+++ b/xfa/fgas/layout/fgas_unicode.cpp
@@ -0,0 +1,117 @@
+// 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 "xfa/fgas/layout/fgas_unicode.h"
+
+void FX_TEXTLAYOUT_PieceSort(CFX_TPOArray& tpos, int32_t iStart, int32_t iEnd) {
+  FXSYS_assert(iStart > -1 && iStart < tpos.GetSize());
+  FXSYS_assert(iEnd > -1 && iEnd < tpos.GetSize());
+  if (iStart >= iEnd) {
+    return;
+  }
+  int32_t i = iStart, j = iEnd;
+  FX_TPO *pCur = tpos.GetPtrAt(iStart), *pSort;
+  int32_t v = pCur->pos;
+  while (i < j) {
+    while (j > i) {
+      pSort = tpos.GetPtrAt(j);
+      if (pSort->pos < v) {
+        FX_TPO t = *pSort;
+        *pSort = *pCur;
+        *pCur = t;
+        pCur = pSort;
+        break;
+      }
+      j--;
+    }
+    while (i < j) {
+      pSort = tpos.GetPtrAt(i);
+      if (pSort->pos > v) {
+        FX_TPO t = *pSort;
+        *pSort = *pCur;
+        *pCur = t;
+        pCur = pSort;
+        break;
+      }
+      i++;
+    }
+  }
+  i--, j++;
+  if (iStart < i) {
+    FX_TEXTLAYOUT_PieceSort(tpos, iStart, i);
+  }
+  if (j < iEnd) {
+    FX_TEXTLAYOUT_PieceSort(tpos, j, iEnd);
+  }
+}
+static const FX_JAPCHARPROPERTYEX gs_FX_JapCharPropertysEx[] = {
+    {0x3001, 0x13}, {0x3002, 0x13}, {0x3041, 0x23}, {0x3043, 0x23},
+    {0x3045, 0x23}, {0x3047, 0x23}, {0x3049, 0x23}, {0x3063, 0x23},
+    {0x3083, 0x23}, {0x3085, 0x23}, {0x3087, 0x23}, {0x308E, 0x23},
+    {0x3095, 0x23}, {0x3096, 0x23}, {0x30A1, 0x23}, {0x30A3, 0x23},
+    {0x30A5, 0x23}, {0x30A7, 0x23}, {0x30A9, 0x23}, {0x30C3, 0x23},
+    {0x30E3, 0x23}, {0x30E5, 0x23}, {0x30E7, 0x23}, {0x30EE, 0x23},
+    {0x30F5, 0x23}, {0x30F6, 0x23}, {0x30FB, 0x22}, {0x31F0, 0x23},
+    {0x31F1, 0x23}, {0x31F2, 0x23}, {0x31F3, 0x23}, {0x31F4, 0x23},
+    {0x31F5, 0x23}, {0x31F6, 0x23}, {0x31F7, 0x23}, {0x31F8, 0x23},
+    {0x31F9, 0x23}, {0x31FA, 0x23}, {0x31FB, 0x23}, {0x31FC, 0x23},
+    {0x31FD, 0x23}, {0x31FE, 0x23}, {0x31FF, 0x23},
+};
+const FX_JAPCHARPROPERTYEX* FX_GetJapCharPropertyEx(FX_WCHAR wch) {
+  int32_t iStart = 0;
+  int32_t iEnd =
+      sizeof(gs_FX_JapCharPropertysEx) / sizeof(FX_JAPCHARPROPERTYEX);
+  while (iStart <= iEnd) {
+    int32_t iMid = (iStart + iEnd) / 2;
+    FX_WCHAR wJapChar = gs_FX_JapCharPropertysEx[iMid].wChar;
+    if (wch == wJapChar) {
+      return gs_FX_JapCharPropertysEx + iMid;
+    } else if (wch < wJapChar) {
+      iEnd = iMid - 1;
+    } else {
+      iStart = iMid + 1;
+    }
+  }
+  return NULL;
+}
+FX_BOOL FX_AdjustJapCharDisplayPos(FX_WCHAR wch,
+                                   FX_BOOL bMBCSCode,
+                                   IFX_Font* pFont,
+                                   FX_FLOAT fFontSize,
+                                   FX_BOOL bVertical,
+                                   CFX_PointF& ptOffset) {
+  if (pFont == NULL || !bVertical) {
+    return FALSE;
+  }
+  if (wch < 0x3001 || wch > 0x31FF) {
+    return FALSE;
+  }
+  const FX_JAPCHARPROPERTYEX* pJapChar = FX_GetJapCharPropertyEx(wch);
+  if (pJapChar == NULL) {
+    return FALSE;
+  }
+  CFX_Rect rtBBox;
+  rtBBox.Reset();
+  if (pFont->GetCharBBox(wch, rtBBox, bMBCSCode)) {
+    switch (pJapChar->uAlign & 0xF0) {
+      case FX_JAPCHARPROPERTYEX_Top:
+        ptOffset.y = fFontSize * (1000 - rtBBox.height) / 1200.0f;
+        break;
+      case FX_JAPCHARPROPERTYEX_Middle:
+        ptOffset.y = fFontSize * (1000 - rtBBox.height) / 6000.0f;
+        break;
+    }
+    switch (pJapChar->uAlign & 0x0F) {
+      case FX_JAPCHARPROPERTYEX_Center:
+        ptOffset.x = fFontSize * (600 - rtBBox.right()) / 1000.0f;
+        break;
+      case FX_JAPCHARPROPERTYEX_Right:
+        ptOffset.x = fFontSize * (950 - rtBBox.right()) / 1000.0f;
+        break;
+    }
+  }
+  return TRUE;
+}