Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_Utils.cpp

-// 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 "barcode.h"
-FX_BOOL BC_FX_ByteString_Replace(CFX_ByteString &dst, FX_DWORD first, FX_DWORD last, FX_INT32 count, FX_CHAR c)
-{
-    if (first > last || count <= 0) {
-        return FALSE;
-    }
-    dst.Delete(first, last - first);
-    for (FX_INT32 i = 0; i < count; i ++) {
-        dst.Insert(0, c);
-    }
-    return TRUE;
-}
-void BC_FX_ByteString_Append(CFX_ByteString &dst, FX_INT32 count, FX_CHAR c)
-{
-    for (FX_INT32 i = 0; i < count; i ++) {
-        dst += c;
-    }
-}
-void BC_FX_ByteString_Append(CFX_ByteString &dst, const CFX_ByteArray &ba)
-{
-    for (FX_INT32 i = 0; i < ba.GetSize(); i ++) {
-        dst += ba[i];
-    }
-}
-void BC_FX_PtrArray_Sort(CFX_PtrArray &src, BC_PtrArrayCompareCallback fun)
-{
-    FX_INT32 nLength = src.GetSize();
-    FX_BOOL changed = true;
-    do {
-        changed = false;
-        for (FX_INT32 i = 0; i < nLength - 1; i++) {
-            if ( fun(src[i + 1], src[i]) ) {
-                void *temp = src[i];
-                src.SetAt(i, src[i + 1]);
-                src.SetAt(i + 1, temp);
-                changed = true;
-            }
-        }
-    } while (changed);
-}