// Copyright 2014 The PDFium Authors
// 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 FXBARCODE_ONED_BC_ONEDIMWRITER_H_
#define FXBARCODE_ONED_BC_ONEDIMWRITER_H_

#include <stddef.h>
#include <stdint.h>

#include <vector>

#include "core/fxcrt/data_vector.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/span.h"
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxge/cfx_textrenderoptions.h"
#include "fxbarcode/BC_Library.h"
#include "fxbarcode/BC_Writer.h"

class CFX_Font;
class CFX_Matrix;
class CFX_Path;
class CFX_RenderDevice;
struct TextCharPos;

class CBC_OneDimWriter : public CBC_Writer {
 public:
  static constexpr CFX_TextRenderOptions GetTextRenderOptions() {
    return CFX_TextRenderOptions(CFX_TextRenderOptions::kLcd);
  }
  static bool HasValidContentSize(WideStringView contents);

  CBC_OneDimWriter();
  ~CBC_OneDimWriter() override;

  virtual bool RenderResult(WideStringView contents,
                            pdfium::span<const uint8_t> code);
  virtual bool CheckContentValidity(WideStringView contents) = 0;
  virtual WideString FilterContents(WideStringView contents) = 0;
  virtual void SetDataLength(int32_t length);

  void SetPrintChecksum(bool checksum);
  void SetCalcChecksum(bool state);
  void SetFontSize(float size);
  void SetFontStyle(int32_t style);
  void SetFontColor(FX_ARGB color);

  virtual DataVector<uint8_t> Encode(const ByteString& contents) = 0;
  bool RenderDeviceResult(CFX_RenderDevice* device,
                          const CFX_Matrix& matrix,
                          WideStringView contents);
  bool SetFont(CFX_Font* cFont);

 protected:
  virtual bool ShowChars(WideStringView contents,
                         CFX_RenderDevice* device,
                         const CFX_Matrix& matrix,
                         int32_t barWidth);
  void ShowDeviceChars(CFX_RenderDevice* device,
                       const CFX_Matrix& matrix,
                       const ByteString str,
                       float geWidth,
                       pdfium::span<TextCharPos> pCharPos,
                       float locX,
                       float locY,
                       int32_t barWidth);
  // Returns the total char width.
  float CalcTextInfo(const ByteString& text,
                     pdfium::span<TextCharPos> charPos,
                     CFX_Font* cFont,
                     float geWidth,
                     int32_t fontSize);
  pdfium::span<uint8_t> AppendPattern(pdfium::span<uint8_t> target,
                                      pdfium::span<const uint8_t> pattern,
                                      bool startColor);

  bool print_checksum_ = true;
  bool calc_checksum_ = false;
  bool left_padding_ = false;
  bool right_padding_ = false;

  UnownedPtr<CFX_Font> font_;
  float font_size_ = 10.0f;
  int32_t font_style_ = 0;
  uint32_t font_color_ = 0xff000000;
  BC_TEXT_LOC loc_text_loc_ = BC_TEXT_LOC::kBelowEmbed;

  int32_t data_length_ = 0;
  size_t content_len_ = 0;

  std::vector<CFX_Path> output_;
  int32_t bar_width_;
  float output_hscale_;
};

#endif  // FXBARCODE_ONED_BC_ONEDIMWRITER_H_