1 files changed, 58 insertions, 0 deletions
diff --git a/core/fxcrt/cfx_widetextbuf.cpp b/core/fxcrt/cfx_widetextbuf.cpp
new file mode 100644
index 0000000000..246124b95f
--- /dev/null
+++ b/core/fxcrt/cfx_widetextbuf.cpp
@@ -0,0 +1,58 @@
+// Copyright 2017 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 "core/fxcrt/cfx_widetextbuf.h"
+
+void CFX_WideTextBuf::AppendChar(wchar_t ch) {
+  ExpandBuf(sizeof(wchar_t));
+  *(wchar_t*)(m_pBuffer.get() + m_DataSize) = ch;
+  m_DataSize += sizeof(wchar_t);
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(const CFX_WideStringC& str) {
+  AppendBlock(str.unterminated_c_str(), str.GetLength() * sizeof(wchar_t));
+  return *this;
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(const CFX_WideString& str) {
+  AppendBlock(str.c_str(), str.GetLength() * sizeof(wchar_t));
+  return *this;
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(int i) {
+  char buf[32];
+  FXSYS_itoa(i, buf, 10);
+  FX_STRSIZE len = FXSYS_strlen(buf);
+  ExpandBuf(len * sizeof(wchar_t));
+  wchar_t* str = (wchar_t*)(m_pBuffer.get() + m_DataSize);
+  for (FX_STRSIZE j = 0; j < len; j++) {
+    *str++ = buf[j];
+  }
+  m_DataSize += len * sizeof(wchar_t);
+  return *this;
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(double f) {
+  char buf[32];
+  FX_STRSIZE len = FX_ftoa((float)f, buf);
+  ExpandBuf(len * sizeof(wchar_t));
+  wchar_t* str = (wchar_t*)(m_pBuffer.get() + m_DataSize);
+  for (FX_STRSIZE i = 0; i < len; i++) {
+    *str++ = buf[i];
+  }
+  m_DataSize += len * sizeof(wchar_t);
+  return *this;
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(const wchar_t* lpsz) {
+  AppendBlock(lpsz, FXSYS_wcslen(lpsz) * sizeof(wchar_t));
+  return *this;
+}
+
+CFX_WideTextBuf& CFX_WideTextBuf::operator<<(const CFX_WideTextBuf& buf) {
+  AppendBlock(buf.m_pBuffer.get(), buf.m_DataSize);
+  return *this;
+}