Organize barcode codes into modules.

xfa/src/fxbarcode/src/include/BC_OnedUPCAWriter.h

-// 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
-
-#ifndef _BC_ONEDUPCAWRITER_H_
-#define _BC_ONEDUPCAWRITER_H_
-class CBC_Writer;
-class CBC_OnedEAN13Writer;
-class CBC_OnedUPCAWriter;
-class CBC_OnedUPCAWriter : public CBC_OneDimWriter
-{
-private:
-    CBC_OnedEAN13Writer *m_subWriter;
-public:
-    CBC_OnedUPCAWriter();
-    virtual ~CBC_OnedUPCAWriter();
-    virtual void Init();
-    FX_BYTE*    Encode(const CFX_ByteString &contents, BCFORMAT format, FX_INT32 &outWidth, FX_INT32 &outHeight, FX_INT32 &e);
-    FX_BYTE*    Encode(const CFX_ByteString &contents, BCFORMAT format, FX_INT32 &outWidth, FX_INT32 &outHeight, FX_INT32 hints, FX_INT32 &e);
-    void                RenderResult(FX_WSTR contents, FX_BYTE* code, FX_INT32 codeLength, FX_BOOL isDevice, FX_INT32 &e);
-    FX_BOOL                     CheckContentValidity(FX_WSTR contents);
-    CFX_WideString      FilterContents(FX_WSTR contents);
-    FX_INT32    CalcChecksum(const CFX_ByteString &contents);
-
-protected:
-
-    void                ShowChars(FX_WSTR contents, CFX_DIBitmap *pOutBitmap, CFX_RenderDevice* device, const CFX_Matrix* matrix, FX_INT32 barWidth, FX_INT32 multiple, FX_INT32 &e);
-};
-#endif